-7(y-5)=7y-21

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Solution for -7(y-5)=7y-21 equation:


Simplifying
-7(y + -5) = 7y + -21

Reorder the terms:
-7(-5 + y) = 7y + -21
(-5 * -7 + y * -7) = 7y + -21
(35 + -7y) = 7y + -21

Reorder the terms:
35 + -7y = -21 + 7y

Solving
35 + -7y = -21 + 7y

Solving for variable 'y'.

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

Add '-7y' to each side of the equation.
35 + -7y + -7y = -21 + 7y + -7y

Combine like terms: -7y + -7y = -14y
35 + -14y = -21 + 7y + -7y

Combine like terms: 7y + -7y = 0
35 + -14y = -21 + 0
35 + -14y = -21

Add '-35' to each side of the equation.
35 + -35 + -14y = -21 + -35

Combine like terms: 35 + -35 = 0
0 + -14y = -21 + -35
-14y = -21 + -35

Combine like terms: -21 + -35 = -56
-14y = -56

Divide each side by '-14'.
y = 4

Simplifying
y = 4

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