3x-10+8x=100

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Solution for 3x-10+8x=100 equation: 


Simplifying
3x + -10 + 8x = 100

Reorder the terms:
-10 + 3x + 8x = 100

Combine like terms: 3x + 8x = 11x
-10 + 11x = 100

Solving
-10 + 11x = 100

Solving for variable 'x'.

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

Add '10' to each side of the equation.
-10 + 10 + 11x = 100 + 10

Combine like terms: -10 + 10 = 0
0 + 11x = 100 + 10
11x = 100 + 10

Combine like terms: 100 + 10 = 110
11x = 110

Divide each side by '11'.
x = 10

Simplifying
x = 10

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