3(10x+5)=9(-x-7)

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Solution for 3(10x+5)=9(-x-7) equation:


Simplifying
3(10x + 5) = 9(-1x + -7)

Reorder the terms:
3(5 + 10x) = 9(-1x + -7)
(5 * 3 + 10x * 3) = 9(-1x + -7)
(15 + 30x) = 9(-1x + -7)

Reorder the terms:
15 + 30x = 9(-7 + -1x)
15 + 30x = (-7 * 9 + -1x * 9)
15 + 30x = (-63 + -9x)

Solving
15 + 30x = -63 + -9x

Solving for variable 'x'.

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

Add '9x' to each side of the equation.
15 + 30x + 9x = -63 + -9x + 9x

Combine like terms: 30x + 9x = 39x
15 + 39x = -63 + -9x + 9x

Combine like terms: -9x + 9x = 0
15 + 39x = -63 + 0
15 + 39x = -63

Add '-15' to each side of the equation.
15 + -15 + 39x = -63 + -15

Combine like terms: 15 + -15 = 0
0 + 39x = -63 + -15
39x = -63 + -15

Combine like terms: -63 + -15 = -78
39x = -78

Divide each side by '39'.
x = -2

Simplifying
x = -2

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