2x+(4-3x)=21

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Solution for 2x+(4-3x)=21 equation:


Simplifying
2x + (4 + -3x) = 21

Remove parenthesis around (4 + -3x)
2x + 4 + -3x = 21

Reorder the terms:
4 + 2x + -3x = 21

Combine like terms: 2x + -3x = -1x
4 + -1x = 21

Solving
4 + -1x = 21

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + -1x = 21 + -4

Combine like terms: 4 + -4 = 0
0 + -1x = 21 + -4
-1x = 21 + -4

Combine like terms: 21 + -4 = 17
-1x = 17

Divide each side by '-1'.
x = -17

Simplifying
x = -17

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