3+8x=87-x

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Solution for 3+8x=87-x equation:


Simplifying
3 + 8x = 87 + -1x

Solving
3 + 8x = 87 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
3 + 8x + x = 87 + -1x + x

Combine like terms: 8x + x = 9x
3 + 9x = 87 + -1x + x

Combine like terms: -1x + x = 0
3 + 9x = 87 + 0
3 + 9x = 87

Add '-3' to each side of the equation.
3 + -3 + 9x = 87 + -3

Combine like terms: 3 + -3 = 0
0 + 9x = 87 + -3
9x = 87 + -3

Combine like terms: 87 + -3 = 84
9x = 84

Divide each side by '9'.
x = 9.333333333

Simplifying
x = 9.333333333

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