Question

What is the solution for x in the equation?

9x - 20 - 4x = 40
ܪ
: 4
o
12
O
1
12

Answer 1

x = 12

Explanation:

Move numbers and variables on opposite sides and flip the signs

9x - 4x = 20 + 40

Add and subtract

5x = 60

Divide and multiply

x = 60/5

x = 12