8.1y-7.1y-5.6=2.5-6.4

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Solution for 8.1y-7.1y-5.6=2.5-6.4 equation:


Simplifying
8.1y + -7.1y + -5.6 = 2.5 + -6.4

Reorder the terms:
-5.6 + 8.1y + -7.1y = 2.5 + -6.4

Combine like terms: 8.1y + -7.1y = 1y
-5.6 + 1y = 2.5 + -6.4

Combine like terms: 2.5 + -6.4 = -3.9
-5.6 + 1y = -3.9

Solving
-5.6 + 1y = -3.9

Solving for variable 'y'.

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

Add '5.6' to each side of the equation.
-5.6 + 5.6 + 1y = -3.9 + 5.6

Combine like terms: -5.6 + 5.6 = 0.0
0.0 + 1y = -3.9 + 5.6
1y = -3.9 + 5.6

Combine like terms: -3.9 + 5.6 = 1.7
1y = 1.7

Divide each side by '1'.
y = 1.7

Simplifying
y = 1.7

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