4(5y-7)-21y=-14

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Solution for 4(5y-7)-21y=-14 equation:


Simplifying
4(5y + -7) + -21y = -14

Reorder the terms:
4(-7 + 5y) + -21y = -14
(-7 * 4 + 5y * 4) + -21y = -14
(-28 + 20y) + -21y = -14

Combine like terms: 20y + -21y = -1y
-28 + -1y = -14

Solving
-28 + -1y = -14

Solving for variable 'y'.

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

Add '28' to each side of the equation.
-28 + 28 + -1y = -14 + 28

Combine like terms: -28 + 28 = 0
0 + -1y = -14 + 28
-1y = -14 + 28

Combine like terms: -14 + 28 = 14
-1y = 14

Divide each side by '-1'.
y = -14

Simplifying
y = -14

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