.7x+.4(81-x)=26.7

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Solution for .7x+.4(81-x)=26.7 equation:


Simplifying
0.7x + 0.4(81 + -1x) = 26.7
0.7x + (81 * 0.4 + -1x * 0.4) = 26.7
0.7x + (32.4 + -0.4x) = 26.7

Reorder the terms:
32.4 + 0.7x + -0.4x = 26.7

Combine like terms: 0.7x + -0.4x = 0.3x
32.4 + 0.3x = 26.7

Solving
32.4 + 0.3x = 26.7

Solving for variable 'x'.

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

Add '-32.4' to each side of the equation.
32.4 + -32.4 + 0.3x = 26.7 + -32.4

Combine like terms: 32.4 + -32.4 = 0.0
0.0 + 0.3x = 26.7 + -32.4
0.3x = 26.7 + -32.4

Combine like terms: 26.7 + -32.4 = -5.7
0.3x = -5.7

Divide each side by '0.3'.
x = -19

Simplifying
x = -19

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