.42y-7=-4

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Solution for .42y-7=-4 equation: 


Simplifying
0.42y + -7 = -4

Reorder the terms:
-7 + 0.42y = -4

Solving
-7 + 0.42y = -4

Solving for variable 'y'.

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

Add '7' to each side of the equation.
-7 + 7 + 0.42y = -4 + 7

Combine like terms: -7 + 7 = 0
0 + 0.42y = -4 + 7
0.42y = -4 + 7

Combine like terms: -4 + 7 = 3
0.42y = 3

Divide each side by '0.42'.
y = 7.142857143

Simplifying
y = 7.142857143

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