2x+3(5-x)=9(x-7)

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Solution for 2x+3(5-x)=9(x-7) equation:


Simplifying
2x + 3(5 + -1x) = 9(x + -7)
2x + (5 * 3 + -1x * 3) = 9(x + -7)
2x + (15 + -3x) = 9(x + -7)

Reorder the terms:
15 + 2x + -3x = 9(x + -7)

Combine like terms: 2x + -3x = -1x
15 + -1x = 9(x + -7)

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

Solving
15 + -1x = -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 + -1x + -9x = -63 + 9x + -9x

Combine like terms: -1x + -9x = -10x
15 + -10x = -63 + 9x + -9x

Combine like terms: 9x + -9x = 0
15 + -10x = -63 + 0
15 + -10x = -63

Add '-15' to each side of the equation.
15 + -15 + -10x = -63 + -15

Combine like terms: 15 + -15 = 0
0 + -10x = -63 + -15
-10x = -63 + -15

Combine like terms: -63 + -15 = -78
-10x = -78

Divide each side by '-10'.
x = 7.8

Simplifying
x = 7.8

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