7(3-x)-4(2-3x)=30

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Solution for 7(3-x)-4(2-3x)=30 equation:


Simplifying
7(3 + -1x) + -4(2 + -3x) = 30
(3 * 7 + -1x * 7) + -4(2 + -3x) = 30
(21 + -7x) + -4(2 + -3x) = 30
21 + -7x + (2 * -4 + -3x * -4) = 30
21 + -7x + (-8 + 12x) = 30

Reorder the terms:
21 + -8 + -7x + 12x = 30

Combine like terms: 21 + -8 = 13
13 + -7x + 12x = 30

Combine like terms: -7x + 12x = 5x
13 + 5x = 30

Solving
13 + 5x = 30

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + 5x = 30 + -13

Combine like terms: 13 + -13 = 0
0 + 5x = 30 + -13
5x = 30 + -13

Combine like terms: 30 + -13 = 17
5x = 17

Divide each side by '5'.
x = 3.4

Simplifying
x = 3.4

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