Sasha solved an equation, as shown below: step 1: 7x = 56 step 2: x = 56 + 7 step 3: x = 63 part a: is sasha’s solution correct or incorrect? if the solution is incorrect, explain why it is incorrect. part b: if the solution is incorrect show the correct steps to solve the equation and find the correct solution to the equation.

Sasha is incorrect.

Here's Why:

Sasha was suppose to divide 7 to both sides not add 7 to both sides. So, the correct way to do it, is like this:

Step 1: 7x = 56

Step 2: 7x = 56

            7        7

Step 3: x = 8

Hope this helps you!!! :)

Alright! So to solve these questions, you need to find out the difference. You can use ratios to solve this. For example, question #25:

A class had 30 pupils at the beginning of this school term, but now has 5 more pupils. What is the percent of increase?

The question is basically asking how much 5 is in ratio to 30. So just divide 5 (the given amount) by 30 (the total amount). The answer is 0.16, or 16%