Question

The two equations are equivalent. What was don to the first equation to get the second equation? 7x - 42 = 63 and x - 6 = 9

Answer 1

x=15

Explanation:

7x-42=63 add 42 to both sides

7x=105 divide by 7 on both sides

x=15

pull in 15 for x

Or you could of added 6 and 9 to find x