7(y-9)=-3(7+y)

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


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

Reorder the terms:
7(-9 + y) = -3(7 + y)
(-9 * 7 + y * 7) = -3(7 + y)
(-63 + 7y) = -3(7 + y)
-63 + 7y = (7 * -3 + y * -3)
-63 + 7y = (-21 + -3y)

Solving
-63 + 7y = -21 + -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.
-63 + 7y + 3y = -21 + -3y + 3y

Combine like terms: 7y + 3y = 10y
-63 + 10y = -21 + -3y + 3y

Combine like terms: -3y + 3y = 0
-63 + 10y = -21 + 0
-63 + 10y = -21

Add '63' to each side of the equation.
-63 + 63 + 10y = -21 + 63

Combine like terms: -63 + 63 = 0
0 + 10y = -21 + 63
10y = -21 + 63

Combine like terms: -21 + 63 = 42
10y = 42

Divide each side by '10'.
y = 4.2

Simplifying
y = 4.2

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