4(3x-28)=5(x+21)

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Solution for 4(3x-28)=5(x+21) equation:


Simplifying
4(3x + -28) = 5(x + 21)

Reorder the terms:
4(-28 + 3x) = 5(x + 21)
(-28 * 4 + 3x * 4) = 5(x + 21)
(-112 + 12x) = 5(x + 21)

Reorder the terms:
-112 + 12x = 5(21 + x)
-112 + 12x = (21 * 5 + x * 5)
-112 + 12x = (105 + 5x)

Solving
-112 + 12x = 105 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
-112 + 12x + -5x = 105 + 5x + -5x

Combine like terms: 12x + -5x = 7x
-112 + 7x = 105 + 5x + -5x

Combine like terms: 5x + -5x = 0
-112 + 7x = 105 + 0
-112 + 7x = 105

Add '112' to each side of the equation.
-112 + 112 + 7x = 105 + 112

Combine like terms: -112 + 112 = 0
0 + 7x = 105 + 112
7x = 105 + 112

Combine like terms: 105 + 112 = 217
7x = 217

Divide each side by '7'.
x = 31

Simplifying
x = 31

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