3x-5(2x+8)=9

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Solution for 3x-5(2x+8)=9 equation:


Simplifying
3x + -5(2x + 8) = 9

Reorder the terms:
3x + -5(8 + 2x) = 9
3x + (8 * -5 + 2x * -5) = 9
3x + (-40 + -10x) = 9

Reorder the terms:
-40 + 3x + -10x = 9

Combine like terms: 3x + -10x = -7x
-40 + -7x = 9

Solving
-40 + -7x = 9

Solving for variable 'x'.

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

Add '40' to each side of the equation.
-40 + 40 + -7x = 9 + 40

Combine like terms: -40 + 40 = 0
0 + -7x = 9 + 40
-7x = 9 + 40

Combine like terms: 9 + 40 = 49
-7x = 49

Divide each side by '-7'.
x = -7

Simplifying
x = -7

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