how to solve 10-3(3x-40)=-9x

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27-09-2016
Mathematics

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how to solve 10-3(3x-40)=-9x

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layzer layzer · Answer 1 · 2016-09-27T18:24:09+02:00

Simplifying 10 + -3(3x + -40) = -9x

Reorder the terms: 10 + -3(-40 + 3x) = -9x
10 + (-40 * -3 + 3x * -3) = -9x
10 + (120 + -9x) = -9x

Combine like terms: 10 + 120 = 130 130 + -9x = -9x

Add '9x' to each side of the equation. 130 + -9x + 9x = -9x + 9x

Combine like terms: -9x + 9x = 0 130 + 0 = -9x + 9x 130 = -9x + 9x

Combine like terms: -9x + 9x = 0 130 = 0

Solving 130 = 0
Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.