5(y+-4)=7(2+1)

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Solution for 5(y+-4)=7(2+1) equation:


Simplifying
5(y + -4) = 7(2 + 1)

Reorder the terms:
5(-4 + y) = 7(2 + 1)
(-4 * 5 + y * 5) = 7(2 + 1)
(-20 + 5y) = 7(2 + 1)

Combine like terms: 2 + 1 = 3
-20 + 5y = 7(3)

Multiply 7 * 3
-20 + 5y = 21

Solving
-20 + 5y = 21

Solving for variable 'y'.

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

Add '20' to each side of the equation.
-20 + 20 + 5y = 21 + 20

Combine like terms: -20 + 20 = 0
0 + 5y = 21 + 20
5y = 21 + 20

Combine like terms: 21 + 20 = 41
5y = 41

Divide each side by '5'.
y = 8.2

Simplifying
y = 8.2

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