x-30+x-40=x+30

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Solution for x-30+x-40=x+30 equation:


Simplifying
x + -30 + x + -40 = x + 30

Reorder the terms:
-30 + -40 + x + x = x + 30

Combine like terms: -30 + -40 = -70
-70 + x + x = x + 30

Combine like terms: x + x = 2x
-70 + 2x = x + 30

Reorder the terms:
-70 + 2x = 30 + x

Solving
-70 + 2x = 30 + 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.
-70 + 2x + -1x = 30 + x + -1x

Combine like terms: 2x + -1x = 1x
-70 + 1x = 30 + x + -1x

Combine like terms: x + -1x = 0
-70 + 1x = 30 + 0
-70 + 1x = 30

Add '70' to each side of the equation.
-70 + 70 + 1x = 30 + 70

Combine like terms: -70 + 70 = 0
0 + 1x = 30 + 70
1x = 30 + 70

Combine like terms: 30 + 70 = 100
1x = 100

Divide each side by '1'.
x = 100

Simplifying
x = 100

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