6-(2.3x)-(2.7x)=21

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Solution for 6-(2.3x)-(2.7x)=21 equation:


Simplifying
6 + -1(2.3x) + -1(2.7x) = 21

Remove parenthesis around (2.3x)
6 + -1 * 2.3x + -1(2.7x) = 21

Multiply -1 * 2.3
6 + -2.3x + -1(2.7x) = 21

Remove parenthesis around (2.7x)
6 + -2.3x + -1 * 2.7x = 21

Multiply -1 * 2.7
6 + -2.3x + -2.7x = 21

Combine like terms: -2.3x + -2.7x = -5x
6 + -5x = 21

Solving
6 + -5x = 21

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + -5x = 21 + -6

Combine like terms: 6 + -6 = 0
0 + -5x = 21 + -6
-5x = 21 + -6

Combine like terms: 21 + -6 = 15
-5x = 15

Divide each side by '-5'.
x = -3

Simplifying
x = -3

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