75-9=5(-4+2y)

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Solution for 75-9=5(-4+2y) equation:


Simplifying
75 + -9 = 5(-4 + 2y)

Combine like terms: 75 + -9 = 66
66 = 5(-4 + 2y)
66 = (-4 * 5 + 2y * 5)
66 = (-20 + 10y)

Solving
66 = -20 + 10y

Solving for variable 'y'.

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

Add '-10y' to each side of the equation.
66 + -10y = -20 + 10y + -10y

Combine like terms: 10y + -10y = 0
66 + -10y = -20 + 0
66 + -10y = -20

Add '-66' to each side of the equation.
66 + -66 + -10y = -20 + -66

Combine like terms: 66 + -66 = 0
0 + -10y = -20 + -66
-10y = -20 + -66

Combine like terms: -20 + -66 = -86
-10y = -86

Divide each side by '-10'.
y = 8.6

Simplifying
y = 8.6

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