7=15-4y

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Solution for 7=15-4y equation:


Simplifying
7 = 15 + -4y

Solving
7 = 15 + -4y

Solving for variable 'y'.

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

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

Combine like terms: -4y + 4y = 0
7 + 4y = 15 + 0
7 + 4y = 15

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

Combine like terms: 7 + -7 = 0
0 + 4y = 15 + -7
4y = 15 + -7

Combine like terms: 15 + -7 = 8
4y = 8

Divide each side by '4'.
y = 2

Simplifying
y = 2

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