145=5(20+-.05y)+7y

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Solution for 145=5(20+-.05y)+7y equation:


Simplifying
145 = 5(20 + -0.05y) + 7y
145 = (20 * 5 + -0.05y * 5) + 7y
145 = (100 + -0.25y) + 7y

Combine like terms: -0.25y + 7y = 6.75y
145 = 100 + 6.75y

Solving
145 = 100 + 6.75y

Solving for variable 'y'.

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

Add '-6.75y' to each side of the equation.
145 + -6.75y = 100 + 6.75y + -6.75y

Combine like terms: 6.75y + -6.75y = 0.00
145 + -6.75y = 100 + 0.00
145 + -6.75y = 100

Add '-145' to each side of the equation.
145 + -145 + -6.75y = 100 + -145

Combine like terms: 145 + -145 = 0
0 + -6.75y = 100 + -145
-6.75y = 100 + -145

Combine like terms: 100 + -145 = -45
-6.75y = -45

Divide each side by '-6.75'.
y = 6.666666667

Simplifying
y = 6.666666667

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