5(x-7)+21=3(x-4)

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Solution for 5(x-7)+21=3(x-4) equation:


Simplifying
5(x + -7) + 21 = 3(x + -4)

Reorder the terms:
5(-7 + x) + 21 = 3(x + -4)
(-7 * 5 + x * 5) + 21 = 3(x + -4)
(-35 + 5x) + 21 = 3(x + -4)

Reorder the terms:
-35 + 21 + 5x = 3(x + -4)

Combine like terms: -35 + 21 = -14
-14 + 5x = 3(x + -4)

Reorder the terms:
-14 + 5x = 3(-4 + x)
-14 + 5x = (-4 * 3 + x * 3)
-14 + 5x = (-12 + 3x)

Solving
-14 + 5x = -12 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-14 + 5x + -3x = -12 + 3x + -3x

Combine like terms: 5x + -3x = 2x
-14 + 2x = -12 + 3x + -3x

Combine like terms: 3x + -3x = 0
-14 + 2x = -12 + 0
-14 + 2x = -12

Add '14' to each side of the equation.
-14 + 14 + 2x = -12 + 14

Combine like terms: -14 + 14 = 0
0 + 2x = -12 + 14
2x = -12 + 14

Combine like terms: -12 + 14 = 2
2x = 2

Divide each side by '2'.
x = 1

Simplifying
x = 1

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