7y-9=34+3y-15

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Solution for 7y-9=34+3y-15 equation:


Simplifying
7y + -9 = 34 + 3y + -15

Reorder the terms:
-9 + 7y = 34 + 3y + -15

Reorder the terms:
-9 + 7y = 34 + -15 + 3y

Combine like terms: 34 + -15 = 19
-9 + 7y = 19 + 3y

Solving
-9 + 7y = 19 + 3y

Solving for variable 'y'.

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

Add '-3y' to each side of the equation.
-9 + 7y + -3y = 19 + 3y + -3y

Combine like terms: 7y + -3y = 4y
-9 + 4y = 19 + 3y + -3y

Combine like terms: 3y + -3y = 0
-9 + 4y = 19 + 0
-9 + 4y = 19

Add '9' to each side of the equation.
-9 + 9 + 4y = 19 + 9

Combine like terms: -9 + 9 = 0
0 + 4y = 19 + 9
4y = 19 + 9

Combine like terms: 19 + 9 = 28
4y = 28

Divide each side by '4'.
y = 7

Simplifying
y = 7

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