Combining Like Terms to Solve Equations — Quiz Answers

Soo-Jung used the subtraction property of equality to solve an equation for y Which equation could be the one that Soo-Jung solved?

Kiemanh is solving the equation 15 r minus 6 r is equal to 36 What is the value of r ?

Jeannie works 5 hours on Tuesday, 3 hours on Wednesday, and 4 point 5 hours on Thursday. If h represents her hourly pay rate, which expression shows the amount she earned?

What is the value of k in the given equation? 5 k minus 2 k is equal to 12

Shau-uen solved the equation 18 point 5 w plus 6 point 5 w minus 2 point 8 w is equal to 149 point 1 Shau-uen's Work Step 1 18 point 5 w plus 6 point 5 w minus 2 point 8 w is equal to 149 point 1 0 Step 2 25 w minus 2 point 8 w is equal to 149 point 1 Step 3 negative 2 point 8 w is equal to 5 point 9 6 4 Step 4 w is equal to negative 2 point 1 3 In which step did Shau-uen make her first error?

Mr. Lopez wrote the equation 32 g plus 8 g minus 10 g is equal to 150 on the board. Four students explained how to solve for g Alyssa: “I added 32 and 8 to get 40 , subtracted 10 to get 30 , and then subtracted 30 from 150 to find the value of g , which is 120 ” Rahul: “I added 32 , 8 , and 10 to get 50 , and then I subtracted 150 to find the value of g , which is negative 100 ” Toni: “I subtracted 18 from 32 to get 14 , which I then divided into 150 to find the value of g , which is 10 and 5 sevenths ” Wilhem: “I added 32 and 8 to get 40 , subtracted 10 to get 30 , and then divided both sides by 30 to find the value of g , which is 5 ” Which student’s work is correct?

At the beginning of the week, Naveen has 87 trading cards. On Monday, he gets 9 more. On Tuesday, he gives 16 away. On Wednesday, he is given 3 by a friend. On Thursday, he sells all of his cards to a collector. The collector pays him a rate of c for every card that Naveen has. If Naveen earns 124 point 5 0 dollars from the sale, what is c , the rate that the collector pays for each card?

Melisande collected 14 bottles on Saturday and 9 bottles on Sunday for recycling. On Monday, she took all the bottles to the recycling center, where they paid her a certain amount, b , for each bottle. However, she had to pay the recycling center a one-time service fee of 0 point 2 5 dollars If she left there with 3 point 2 0 dollars for the bottles, what is the value of b ?

Which property of equality should Wade use to solve the equation x over 6 is equal to 3 ?

Nisha did the following work to solve an equation. Nisha's Work Step 1 7 b plus 3 point 2 b minus 5 is equal to 18 point 9 2 Step 2 10 point 2 b minus 5 is equal to 18 point 9 2 Step 3 5 point 2 b is equal to 18 point 9 2 Step 4 b is equal to 3 point 6 4 In which step did Nisha make her first error?