# Math Help - help solve equation

1. ## help solve equation

when 7 times a number is decreased by 8, the answer is the same as when 3 times the number is increased by 4. find the number.

when 7 times a number is decreased by 8, the answer is the same as when 3 times the number is increased by 4. find the number.
7*x - 8 = 3*x + 4

Solve for x;

4*x = 12

x = 3

3. ## things are better in color

That's your equation, therefore when you subtract both sides by 3n you get: $4n-8=4$
Add 8 to both sides to get: $4n=12$
divide by 4: $n=3$