15x-20=6x-(x+4)-(3-x)

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Solution for 15x-20=6x-(x+4)-(3-x) equation:


Simplifying
15x + -20 = 6x + -1(x + 4) + -1(3 + -1x)

Reorder the terms:
-20 + 15x = 6x + -1(x + 4) + -1(3 + -1x)

Reorder the terms:
-20 + 15x = 6x + -1(4 + x) + -1(3 + -1x)
-20 + 15x = 6x + (4 * -1 + x * -1) + -1(3 + -1x)
-20 + 15x = 6x + (-4 + -1x) + -1(3 + -1x)
-20 + 15x = 6x + -4 + -1x + (3 * -1 + -1x * -1)
-20 + 15x = 6x + -4 + -1x + (-3 + 1x)

Reorder the terms:
-20 + 15x = -4 + -3 + 6x + -1x + 1x

Combine like terms: -4 + -3 = -7
-20 + 15x = -7 + 6x + -1x + 1x

Combine like terms: 6x + -1x = 5x
-20 + 15x = -7 + 5x + 1x

Combine like terms: 5x + 1x = 6x
-20 + 15x = -7 + 6x

Solving
-20 + 15x = -7 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
-20 + 15x + -6x = -7 + 6x + -6x

Combine like terms: 15x + -6x = 9x
-20 + 9x = -7 + 6x + -6x

Combine like terms: 6x + -6x = 0
-20 + 9x = -7 + 0
-20 + 9x = -7

Add '20' to each side of the equation.
-20 + 20 + 9x = -7 + 20

Combine like terms: -20 + 20 = 0
0 + 9x = -7 + 20
9x = -7 + 20

Combine like terms: -7 + 20 = 13
9x = 13

Divide each side by '9'.
x = 1.444444444

Simplifying
x = 1.444444444

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