2.7=8.4+y

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Solution for 2.7=8.4+y equation:


Simplifying
2.7 = 8.4 + y

Solving
2.7 = 8.4 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
2.7 + -1y = 8.4 + y + -1y

Combine like terms: y + -1y = 0
2.7 + -1y = 8.4 + 0
2.7 + -1y = 8.4

Add '-2.7' to each side of the equation.
2.7 + -2.7 + -1y = 8.4 + -2.7

Combine like terms: 2.7 + -2.7 = 0.0
0.0 + -1y = 8.4 + -2.7
-1y = 8.4 + -2.7

Combine like terms: 8.4 + -2.7 = 5.7
-1y = 5.7

Divide each side by '-1'.
y = -5.7

Simplifying
y = -5.7

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