3x+7+5x=2x+30+40

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Solution for 3x+7+5x=2x+30+40 equation:


Simplifying
3x + 7 + 5x = 2x + 30 + 40

Reorder the terms:
7 + 3x + 5x = 2x + 30 + 40

Combine like terms: 3x + 5x = 8x
7 + 8x = 2x + 30 + 40

Reorder the terms:
7 + 8x = 30 + 40 + 2x

Combine like terms: 30 + 40 = 70
7 + 8x = 70 + 2x

Solving
7 + 8x = 70 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
7 + 8x + -2x = 70 + 2x + -2x

Combine like terms: 8x + -2x = 6x
7 + 6x = 70 + 2x + -2x

Combine like terms: 2x + -2x = 0
7 + 6x = 70 + 0
7 + 6x = 70

Add '-7' to each side of the equation.
7 + -7 + 6x = 70 + -7

Combine like terms: 7 + -7 = 0
0 + 6x = 70 + -7
6x = 70 + -7

Combine like terms: 70 + -7 = 63
6x = 63

Divide each side by '6'.
x = 10.5

Simplifying
x = 10.5

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