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

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Solution for 7(x+3)=8(x-1) equation:


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

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

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

Solving
21 + 7x = -8 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
21 + 7x + -8x = -8 + 8x + -8x

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

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

Add '-21' to each side of the equation.
21 + -21 + -1x = -8 + -21

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

Combine like terms: -8 + -21 = -29
-1x = -29

Divide each side by '-1'.
x = 29

Simplifying
x = 29

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