8x+2-7=100

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Solution for 8x+2-7=100 equation:


Simplifying
8x + 2 + -7 = 100

Reorder the terms:
2 + -7 + 8x = 100

Combine like terms: 2 + -7 = -5
-5 + 8x = 100

Solving
-5 + 8x = 100

Solving for variable 'x'.

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

Add '5' to each side of the equation.
-5 + 5 + 8x = 100 + 5

Combine like terms: -5 + 5 = 0
0 + 8x = 100 + 5
8x = 100 + 5

Combine like terms: 100 + 5 = 105
8x = 105

Divide each side by '8'.
x = 13.125

Simplifying
x = 13.125

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