X-(-30)=40

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Solution for X-(-30)=40 equation: 


Simplifying
X + -1(-30) = 40

Multiply -1 * -30
X + 30 = 40

Reorder the terms:
30 + X = 40

Solving
30 + X = 40

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 + X = 40 + -30

Combine like terms: 30 + -30 = 0
0 + X = 40 + -30
X = 40 + -30

Combine like terms: 40 + -30 = 10
X = 10

Simplifying
X = 10

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