x+7x+x+100=712

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Solution for x+7x+x+100=712 equation:


Simplifying
x + 7x + x + 100 = 712

Reorder the terms:
100 + x + 7x + x = 712

Combine like terms: x + 7x = 8x
100 + 8x + x = 712

Combine like terms: 8x + x = 9x
100 + 9x = 712

Solving
100 + 9x = 712

Solving for variable 'x'.

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

Add '-100' to each side of the equation.
100 + -100 + 9x = 712 + -100

Combine like terms: 100 + -100 = 0
0 + 9x = 712 + -100
9x = 712 + -100

Combine like terms: 712 + -100 = 612
9x = 612

Divide each side by '9'.
x = 68

Simplifying
x = 68

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