7(x+3)=4-(x+8)

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Solution for 7(x+3)=4-(x+8) equation:


Simplifying
7(x + 3) = 4 + -1(x + 8)

Reorder the terms:
7(3 + x) = 4 + -1(x + 8)
(3 * 7 + x * 7) = 4 + -1(x + 8)
(21 + 7x) = 4 + -1(x + 8)

Reorder the terms:
21 + 7x = 4 + -1(8 + x)
21 + 7x = 4 + (8 * -1 + x * -1)
21 + 7x = 4 + (-8 + -1x)

Combine like terms: 4 + -8 = -4
21 + 7x = -4 + -1x

Solving
21 + 7x = -4 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
21 + 7x + x = -4 + -1x + x

Combine like terms: 7x + x = 8x
21 + 8x = -4 + -1x + x

Combine like terms: -1x + x = 0
21 + 8x = -4 + 0
21 + 8x = -4

Add '-21' to each side of the equation.
21 + -21 + 8x = -4 + -21

Combine like terms: 21 + -21 = 0
0 + 8x = -4 + -21
8x = -4 + -21

Combine like terms: -4 + -21 = -25
8x = -25

Divide each side by '8'.
x = -3.125

Simplifying
x = -3.125

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