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

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


Simplifying
5(4x + -7) = -21(5 + -1x)

Reorder the terms:
5(-7 + 4x) = -21(5 + -1x)
(-7 * 5 + 4x * 5) = -21(5 + -1x)
(-35 + 20x) = -21(5 + -1x)
-35 + 20x = (5 * -21 + -1x * -21)
-35 + 20x = (-105 + 21x)

Solving
-35 + 20x = -105 + 21x

Solving for variable 'x'.

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

Add '-21x' to each side of the equation.
-35 + 20x + -21x = -105 + 21x + -21x

Combine like terms: 20x + -21x = -1x
-35 + -1x = -105 + 21x + -21x

Combine like terms: 21x + -21x = 0
-35 + -1x = -105 + 0
-35 + -1x = -105

Add '35' to each side of the equation.
-35 + 35 + -1x = -105 + 35

Combine like terms: -35 + 35 = 0
0 + -1x = -105 + 35
-1x = -105 + 35

Combine like terms: -105 + 35 = -70
-1x = -70

Divide each side by '-1'.
x = 70

Simplifying
x = 70

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