100-(x+40)=120

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Solution for 100-(x+40)=120 equation:


Simplifying
100 + -1(x + 40) = 120

Reorder the terms:
100 + -1(40 + x) = 120
100 + (40 * -1 + x * -1) = 120
100 + (-40 + -1x) = 120

Combine like terms: 100 + -40 = 60
60 + -1x = 120

Solving
60 + -1x = 120

Solving for variable 'x'.

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

Add '-60' to each side of the equation.
60 + -60 + -1x = 120 + -60

Combine like terms: 60 + -60 = 0
0 + -1x = 120 + -60
-1x = 120 + -60

Combine like terms: 120 + -60 = 60
-1x = 60

Divide each side by '-1'.
x = -60

Simplifying
x = -60

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