Question

Use words to explain why the two equations below are equivalent

7x - 9 = 12
3(2x - 5) = 6 - x

Answer 1

These equations are equivalent because after you solve the equation the answer are the same. For example 2+2 and 3+1 are equivalent. They both equal four. In these problems are x=3 and x=3.5 they are the same beause of the answer on problem 2 6-x. That makes them both have the same answer

Explanation:

7x-9=12

+9=+9

7x=21

/7=/7

x=3