8(x-3)=-7x+21

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Solution for 8(x-3)=-7x+21 equation:


Simplifying
8(x + -3) = -7x + 21

Reorder the terms:
8(-3 + x) = -7x + 21
(-3 * 8 + x * 8) = -7x + 21
(-24 + 8x) = -7x + 21

Reorder the terms:
-24 + 8x = 21 + -7x

Solving
-24 + 8x = 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.
-24 + 8x + 7x = 21 + -7x + 7x

Combine like terms: 8x + 7x = 15x
-24 + 15x = 21 + -7x + 7x

Combine like terms: -7x + 7x = 0
-24 + 15x = 21 + 0
-24 + 15x = 21

Add '24' to each side of the equation.
-24 + 24 + 15x = 21 + 24

Combine like terms: -24 + 24 = 0
0 + 15x = 21 + 24
15x = 21 + 24

Combine like terms: 21 + 24 = 45
15x = 45

Divide each side by '15'.
x = 3

Simplifying
x = 3

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