45+-5=4x+72

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Solution for 45+-5=4x+72 equation:


Simplifying
45 + -5 = 4x + 72

Combine like terms: 45 + -5 = 40
40 = 4x + 72

Reorder the terms:
40 = 72 + 4x

Solving
40 = 72 + 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.
40 + -4x = 72 + 4x + -4x

Combine like terms: 4x + -4x = 0
40 + -4x = 72 + 0
40 + -4x = 72

Add '-40' to each side of the equation.
40 + -40 + -4x = 72 + -40

Combine like terms: 40 + -40 = 0
0 + -4x = 72 + -40
-4x = 72 + -40

Combine like terms: 72 + -40 = 32
-4x = 32

Divide each side by '-4'.
x = -8

Simplifying
x = -8

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