-3(-9.3)+7y=-21

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Solution for -3(-9.3)+7y=-21 equation: 


Simplifying
-3(-9.3) + 7y = -21

Multiply -3 * -9.3
27.9 + 7y = -21

Solving
27.9 + 7y = -21

Solving for variable 'y'.

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

Add '-27.9' to each side of the equation.
27.9 + -27.9 + 7y = -21 + -27.9

Combine like terms: 27.9 + -27.9 = 0.0
0.0 + 7y = -21 + -27.9
7y = -21 + -27.9

Combine like terms: -21 + -27.9 = -48.9
7y = -48.9

Divide each side by '7'.
y = -6.985714286

Simplifying
y = -6.985714286

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