7-9y=4-7y

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Solution for 7-9y=4-7y equation:


Simplifying
7 + -9y = 4 + -7y

Solving
7 + -9y = 4 + -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 + -9y + 7y = 4 + -7y + 7y

Combine like terms: -9y + 7y = -2y
7 + -2y = 4 + -7y + 7y

Combine like terms: -7y + 7y = 0
7 + -2y = 4 + 0
7 + -2y = 4

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

Combine like terms: 7 + -7 = 0
0 + -2y = 4 + -7
-2y = 4 + -7

Combine like terms: 4 + -7 = -3
-2y = -3

Divide each side by '-2'.
y = 1.5

Simplifying
y = 1.5

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