3x+4(2x-7)=21.5

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Solution for 3x+4(2x-7)=21.5 equation:


Simplifying
3x + 4(2x + -7) = 21.5

Reorder the terms:
3x + 4(-7 + 2x) = 21.5
3x + (-7 * 4 + 2x * 4) = 21.5
3x + (-28 + 8x) = 21.5

Reorder the terms:
-28 + 3x + 8x = 21.5

Combine like terms: 3x + 8x = 11x
-28 + 11x = 21.5

Solving
-28 + 11x = 21.5

Solving for variable 'x'.

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

Add '28' to each side of the equation.
-28 + 28 + 11x = 21.5 + 28

Combine like terms: -28 + 28 = 0
0 + 11x = 21.5 + 28
11x = 21.5 + 28

Combine like terms: 21.5 + 28 = 49.5
11x = 49.5

Divide each side by '11'.
x = 4.5

Simplifying
x = 4.5

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