4y-7=7y+20

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Solution for 4y-7=7y+20 equation:


Simplifying
4y + -7 = 7y + 20

Reorder the terms:
-7 + 4y = 7y + 20

Reorder the terms:
-7 + 4y = 20 + 7y

Solving
-7 + 4y = 20 + 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.
-7 + 4y + -7y = 20 + 7y + -7y

Combine like terms: 4y + -7y = -3y
-7 + -3y = 20 + 7y + -7y

Combine like terms: 7y + -7y = 0
-7 + -3y = 20 + 0
-7 + -3y = 20

Add '7' to each side of the equation.
-7 + 7 + -3y = 20 + 7

Combine like terms: -7 + 7 = 0
0 + -3y = 20 + 7
-3y = 20 + 7

Combine like terms: 20 + 7 = 27
-3y = 27

Divide each side by '-3'.
y = -9

Simplifying
y = -9

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