10+8=87+x

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Solution for 10+8=87+x equation:


Simplifying
10 + 8 = 87 + x

Combine like terms: 10 + 8 = 18
18 = 87 + x

Solving
18 = 87 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
18 + -1x = 87 + x + -1x

Combine like terms: x + -1x = 0
18 + -1x = 87 + 0
18 + -1x = 87

Add '-18' to each side of the equation.
18 + -18 + -1x = 87 + -18

Combine like terms: 18 + -18 = 0
0 + -1x = 87 + -18
-1x = 87 + -18

Combine like terms: 87 + -18 = 69
-1x = 69

Divide each side by '-1'.
x = -69

Simplifying
x = -69

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