Question

What is the answer for 13=4x-9

Answer 1

The answer to this equation is: x=5.5

Answer 2

Simplifying
13 = 4x + 9

Reorder the terms:
13 = 9 + 4x

Solving
13 = 9 + 4x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-4x' to each side of the equation.
13 + -4x = 9 + 4x + -4x

Combine like terms: 4x + -4x = 0
13 + -4x = 9 + 0
13 + -4x = 9

Add '-13' to each side of the equation.
13 + -13 + -4x = 9 + -13

Combine like terms: 13 + -13 = 0
0 + -4x = 9 + -13
-4x = 9 + -13

Combine like terms: 9 + -13 = -4
-4x = -4

Divide each side by '-4'.
x = 1

Simplifying
x = 1