7(.5+y)+3y+1=20

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Solution for 7(.5+y)+3y+1=20 equation:


Simplifying
7(0.5 + y) + 3y + 1 = 20
(0.5 * 7 + y * 7) + 3y + 1 = 20
(3.5 + 7y) + 3y + 1 = 20

Reorder the terms:
3.5 + 1 + 7y + 3y = 20

Combine like terms: 3.5 + 1 = 4.5
4.5 + 7y + 3y = 20

Combine like terms: 7y + 3y = 10y
4.5 + 10y = 20

Solving
4.5 + 10y = 20

Solving for variable 'y'.

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

Add '-4.5' to each side of the equation.
4.5 + -4.5 + 10y = 20 + -4.5

Combine like terms: 4.5 + -4.5 = 0.0
0.0 + 10y = 20 + -4.5
10y = 20 + -4.5

Combine like terms: 20 + -4.5 = 15.5
10y = 15.5

Divide each side by '10'.
y = 1.55

Simplifying
y = 1.55

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