Question

How do I simplify -3u+7=-9u+49?

Answer 1

u = 7

Explanation:

First move the variables to one side and the constants to another.

Add 9u to both sides and also subtract 7 from both sides

-3u + 7 + 9u - 7 = -9u + 49 + 9u - 7

6u = 42

u = 7