4y-15+4y-15=7y

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


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

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

Combine like terms: -15 + -15 = -30
-30 + 4y + 4y = 7y

Combine like terms: 4y + 4y = 8y
-30 + 8y = 7y

Solving
-30 + 8y = 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.
-30 + 8y + -7y = 7y + -7y

Combine like terms: 8y + -7y = 1y
-30 + 1y = 7y + -7y

Combine like terms: 7y + -7y = 0
-30 + 1y = 0

Add '30' to each side of the equation.
-30 + 30 + 1y = 0 + 30

Combine like terms: -30 + 30 = 0
0 + 1y = 0 + 30
1y = 0 + 30

Combine like terms: 0 + 30 = 30
1y = 30

Divide each side by '1'.
y = 30

Simplifying
y = 30

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