9(5y-3)-7(7y-4)=y

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Solution for 9(5y-3)-7(7y-4)=y equation:


Simplifying
9(5y + -3) + -7(7y + -4) = y

Reorder the terms:
9(-3 + 5y) + -7(7y + -4) = y
(-3 * 9 + 5y * 9) + -7(7y + -4) = y
(-27 + 45y) + -7(7y + -4) = y

Reorder the terms:
-27 + 45y + -7(-4 + 7y) = y
-27 + 45y + (-4 * -7 + 7y * -7) = y
-27 + 45y + (28 + -49y) = y

Reorder the terms:
-27 + 28 + 45y + -49y = y

Combine like terms: -27 + 28 = 1
1 + 45y + -49y = y

Combine like terms: 45y + -49y = -4y
1 + -4y = y

Solving
1 + -4y = y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
1 + -4y + -1y = y + -1y

Combine like terms: -4y + -1y = -5y
1 + -5y = y + -1y

Combine like terms: y + -1y = 0
1 + -5y = 0

Add '-1' to each side of the equation.
1 + -1 + -5y = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -5y = 0 + -1
-5y = 0 + -1

Combine like terms: 0 + -1 = -1
-5y = -1

Divide each side by '-5'.
y = 0.2

Simplifying
y = 0.2

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