7y-4=4y+5

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Solution for 7y-4=4y+5 equation:


Simplifying
7y + -4 = 4y + 5

Reorder the terms:
-4 + 7y = 4y + 5

Reorder the terms:
-4 + 7y = 5 + 4y

Solving
-4 + 7y = 5 + 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.
-4 + 7y + -4y = 5 + 4y + -4y

Combine like terms: 7y + -4y = 3y
-4 + 3y = 5 + 4y + -4y

Combine like terms: 4y + -4y = 0
-4 + 3y = 5 + 0
-4 + 3y = 5

Add '4' to each side of the equation.
-4 + 4 + 3y = 5 + 4

Combine like terms: -4 + 4 = 0
0 + 3y = 5 + 4
3y = 5 + 4

Combine like terms: 5 + 4 = 9
3y = 9

Divide each side by '3'.
y = 3

Simplifying
y = 3

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