6y-0.4=7y

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Solution for 6y-0.4=7y equation:


Simplifying
6y + -0.4 = 7y

Reorder the terms:
-0.4 + 6y = 7y

Solving
-0.4 + 6y = 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.
-0.4 + 6y + -7y = 7y + -7y

Combine like terms: 6y + -7y = -1y
-0.4 + -1y = 7y + -7y

Combine like terms: 7y + -7y = 0
-0.4 + -1y = 0

Add '0.4' to each side of the equation.
-0.4 + 0.4 + -1y = 0 + 0.4

Combine like terms: -0.4 + 0.4 = 0.0
0.0 + -1y = 0 + 0.4
-1y = 0 + 0.4

Combine like terms: 0 + 0.4 = 0.4
-1y = 0.4

Divide each side by '-1'.
y = -0.4

Simplifying
y = -0.4

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