100=40+8x

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Solution for 100=40+8x equation:


Simplifying
100 = 40 + 8x

Solving
100 = 40 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
100 + -8x = 40 + 8x + -8x

Combine like terms: 8x + -8x = 0
100 + -8x = 40 + 0
100 + -8x = 40

Add '-100' to each side of the equation.
100 + -100 + -8x = 40 + -100

Combine like terms: 100 + -100 = 0
0 + -8x = 40 + -100
-8x = 40 + -100

Combine like terms: 40 + -100 = -60
-8x = -60

Divide each side by '-8'.
x = 7.5

Simplifying
x = 7.5

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