3(5-4x)-(3-7x)=-(2+9x)

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Solution for 3(5-4x)-(3-7x)=-(2+9x) equation:


Simplifying
3(5 + -4x) + -1(3 + -7x) = -1(2 + 9x)
(5 * 3 + -4x * 3) + -1(3 + -7x) = -1(2 + 9x)
(15 + -12x) + -1(3 + -7x) = -1(2 + 9x)
15 + -12x + (3 * -1 + -7x * -1) = -1(2 + 9x)
15 + -12x + (-3 + 7x) = -1(2 + 9x)

Reorder the terms:
15 + -3 + -12x + 7x = -1(2 + 9x)

Combine like terms: 15 + -3 = 12
12 + -12x + 7x = -1(2 + 9x)

Combine like terms: -12x + 7x = -5x
12 + -5x = -1(2 + 9x)
12 + -5x = (2 * -1 + 9x * -1)
12 + -5x = (-2 + -9x)

Solving
12 + -5x = -2 + -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.
12 + -5x + 9x = -2 + -9x + 9x

Combine like terms: -5x + 9x = 4x
12 + 4x = -2 + -9x + 9x

Combine like terms: -9x + 9x = 0
12 + 4x = -2 + 0
12 + 4x = -2

Add '-12' to each side of the equation.
12 + -12 + 4x = -2 + -12

Combine like terms: 12 + -12 = 0
0 + 4x = -2 + -12
4x = -2 + -12

Combine like terms: -2 + -12 = -14
4x = -14

Divide each side by '4'.
x = -3.5

Simplifying
x = -3.5

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