4y-7=2y-15

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Solution for 4y-7=2y-15 equation:


Simplifying
4y + -7 = 2y + -15

Reorder the terms:
-7 + 4y = 2y + -15

Reorder the terms:
-7 + 4y = -15 + 2y

Solving
-7 + 4y = -15 + 2y

Solving for variable 'y'.

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

Add '-2y' to each side of the equation.
-7 + 4y + -2y = -15 + 2y + -2y

Combine like terms: 4y + -2y = 2y
-7 + 2y = -15 + 2y + -2y

Combine like terms: 2y + -2y = 0
-7 + 2y = -15 + 0
-7 + 2y = -15

Add '7' to each side of the equation.
-7 + 7 + 2y = -15 + 7

Combine like terms: -7 + 7 = 0
0 + 2y = -15 + 7
2y = -15 + 7

Combine like terms: -15 + 7 = -8
2y = -8

Divide each side by '2'.
y = -4

Simplifying
y = -4

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