8y-7=4y+9

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Solution for 8y-7=4y+9 equation:


Simplifying
8y + -7 = 4y + 9

Reorder the terms:
-7 + 8y = 4y + 9

Reorder the terms:
-7 + 8y = 9 + 4y

Solving
-7 + 8y = 9 + 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 + 8y + -4y = 9 + 4y + -4y

Combine like terms: 8y + -4y = 4y
-7 + 4y = 9 + 4y + -4y

Combine like terms: 4y + -4y = 0
-7 + 4y = 9 + 0
-7 + 4y = 9

Add '7' to each side of the equation.
-7 + 7 + 4y = 9 + 7

Combine like terms: -7 + 7 = 0
0 + 4y = 9 + 7
4y = 9 + 7

Combine like terms: 9 + 7 = 16
4y = 16

Divide each side by '4'.
y = 4

Simplifying
y = 4

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