-3.5=-7y+(-4.2)

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Solution for -3.5=-7y+(-4.2) equation: 


Simplifying
-3.5 = -7y + (-4.2)
-3.5 = -7y + -4.2

Reorder the terms:
-3.5 = -4.2 + -7y

Solving
-3.5 = -4.2 + -7y

Solving for variable 'y'.

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

Add '7y' to each side of the equation.
-3.5 + 7y = -4.2 + -7y + 7y

Combine like terms: -7y + 7y = 0
-3.5 + 7y = -4.2 + 0
-3.5 + 7y = -4.2

Add '3.5' to each side of the equation.
-3.5 + 3.5 + 7y = -4.2 + 3.5

Combine like terms: -3.5 + 3.5 = 0.0
0.0 + 7y = -4.2 + 3.5
7y = -4.2 + 3.5

Combine like terms: -4.2 + 3.5 = -0.7
7y = -0.7

Divide each side by '7'.
y = -0.1

Simplifying
y = -0.1

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