7y-12-3y+4=18

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Solution for 7y-12-3y+4=18 equation:


Simplifying
7y + -12 + -3y + 4 = 18

Reorder the terms:
-12 + 4 + 7y + -3y = 18

Combine like terms: -12 + 4 = -8
-8 + 7y + -3y = 18

Combine like terms: 7y + -3y = 4y
-8 + 4y = 18

Solving
-8 + 4y = 18

Solving for variable 'y'.

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

Add '8' to each side of the equation.
-8 + 8 + 4y = 18 + 8

Combine like terms: -8 + 8 = 0
0 + 4y = 18 + 8
4y = 18 + 8

Combine like terms: 18 + 8 = 26
4y = 26

Divide each side by '4'.
y = 6.5

Simplifying
y = 6.5

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