3x+7+5x+8=55

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Solution for 3x+7+5x+8=55 equation:


Simplifying
3x + 7 + 5x + 8 = 55

Reorder the terms:
7 + 8 + 3x + 5x = 55

Combine like terms: 7 + 8 = 15
15 + 3x + 5x = 55

Combine like terms: 3x + 5x = 8x
15 + 8x = 55

Solving
15 + 8x = 55

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 8x = 55 + -15

Combine like terms: 15 + -15 = 0
0 + 8x = 55 + -15
8x = 55 + -15

Combine like terms: 55 + -15 = 40
8x = 40

Divide each side by '8'.
x = 5

Simplifying
x = 5

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