2.1-8.1=3.15-5.4x

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Solution for 2.1-8.1=3.15-5.4x equation:


Simplifying
2.1 + -8.1 = 3.15 + -5.4x

Combine like terms: 2.1 + -8.1 = -6
-6 = 3.15 + -5.4x

Solving
-6 = 3.15 + -5.4x

Solving for variable 'x'.

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

Add '5.4x' to each side of the equation.
-6 + 5.4x = 3.15 + -5.4x + 5.4x

Combine like terms: -5.4x + 5.4x = 0.0
-6 + 5.4x = 3.15 + 0.0
-6 + 5.4x = 3.15

Add '6' to each side of the equation.
-6 + 6 + 5.4x = 3.15 + 6

Combine like terms: -6 + 6 = 0
0 + 5.4x = 3.15 + 6
5.4x = 3.15 + 6

Combine like terms: 3.15 + 6 = 9.15
5.4x = 9.15

Divide each side by '5.4'.
x = 1.694444444

Simplifying
x = 1.694444444

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