2(-20)+(30-5(-20))=90

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Solution for 2(-20)+(30-5(-20))=90 equation: 


Simplifying
2(-20) + (30 + -5(-20)) = 90

Multiply 2 * -20
-40 + (30 + -5(-20)) = 90

Multiply -5 * -20
-40 + (30 + 100) = 90

Combine like terms: 30 + 100 = 130
-40 + (130) = 90
-40 + 130 = 90

Combine like terms: -40 + 130 = 90
90 = 90

Add '-90' to each side of the equation.
90 + -90 = 90 + -90

Combine like terms: 90 + -90 = 0
0 = 90 + -90

Combine like terms: 90 + -90 = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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