-(x+20)=7(x-3)

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Solution for -(x+20)=7(x-3) equation:


Simplifying
-1(x + 20) = 7(x + -3)

Reorder the terms:
-1(20 + x) = 7(x + -3)
(20 * -1 + x * -1) = 7(x + -3)
(-20 + -1x) = 7(x + -3)

Reorder the terms:
-20 + -1x = 7(-3 + x)
-20 + -1x = (-3 * 7 + x * 7)
-20 + -1x = (-21 + 7x)

Solving
-20 + -1x = -21 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
-20 + -1x + -7x = -21 + 7x + -7x

Combine like terms: -1x + -7x = -8x
-20 + -8x = -21 + 7x + -7x

Combine like terms: 7x + -7x = 0
-20 + -8x = -21 + 0
-20 + -8x = -21

Add '20' to each side of the equation.
-20 + 20 + -8x = -21 + 20

Combine like terms: -20 + 20 = 0
0 + -8x = -21 + 20
-8x = -21 + 20

Combine like terms: -21 + 20 = -1
-8x = -1

Divide each side by '-8'.
x = 0.125

Simplifying
x = 0.125

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