5x-(x-30)=100

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Solution for 5x-(x-30)=100 equation:


Simplifying
5x + -1(x + -30) = 100

Reorder the terms:
5x + -1(-30 + x) = 100
5x + (-30 * -1 + x * -1) = 100
5x + (30 + -1x) = 100

Reorder the terms:
30 + 5x + -1x = 100

Combine like terms: 5x + -1x = 4x
30 + 4x = 100

Solving
30 + 4x = 100

Solving for variable 'x'.

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

Add '-30' to each side of the equation.
30 + -30 + 4x = 100 + -30

Combine like terms: 30 + -30 = 0
0 + 4x = 100 + -30
4x = 100 + -30

Combine like terms: 100 + -30 = 70
4x = 70

Divide each side by '4'.
x = 17.5

Simplifying
x = 17.5

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