15(0.7)-20y=-7

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Solution for 15(0.7)-20y=-7 equation: 


Simplifying
15(0.7) + -20y = -7

Multiply 15 * 0.7
10.5 + -20y = -7

Solving
10.5 + -20y = -7

Solving for variable 'y'.

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

Add '-10.5' to each side of the equation.
10.5 + -10.5 + -20y = -7 + -10.5

Combine like terms: 10.5 + -10.5 = 0.0
0.0 + -20y = -7 + -10.5
-20y = -7 + -10.5

Combine like terms: -7 + -10.5 = -17.5
-20y = -17.5

Divide each side by '-20'.
y = 0.875

Simplifying
y = 0.875

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