55=4x+15

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Solution for 55=4x+15 equation:


Simplifying
55 = 4x + 15

Reorder the terms:
55 = 15 + 4x

Solving
55 = 15 + 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.
55 + -4x = 15 + 4x + -4x

Combine like terms: 4x + -4x = 0
55 + -4x = 15 + 0
55 + -4x = 15

Add '-55' to each side of the equation.
55 + -55 + -4x = 15 + -55

Combine like terms: 55 + -55 = 0
0 + -4x = 15 + -55
-4x = 15 + -55

Combine like terms: 15 + -55 = -40
-4x = -40

Divide each side by '-4'.
x = 10

Simplifying
x = 10

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