7(x+3)-(4x-9)=4

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Solution for 7(x+3)-(4x-9)=4 equation:


Simplifying
7(x + 3) + -1(4x + -9) = 4

Reorder the terms:
7(3 + x) + -1(4x + -9) = 4
(3 * 7 + x * 7) + -1(4x + -9) = 4
(21 + 7x) + -1(4x + -9) = 4

Reorder the terms:
21 + 7x + -1(-9 + 4x) = 4
21 + 7x + (-9 * -1 + 4x * -1) = 4
21 + 7x + (9 + -4x) = 4

Reorder the terms:
21 + 9 + 7x + -4x = 4

Combine like terms: 21 + 9 = 30
30 + 7x + -4x = 4

Combine like terms: 7x + -4x = 3x
30 + 3x = 4

Solving
30 + 3x = 4

Solving for variable 'x'.

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

Add '-30' to each side of the equation.
30 + -30 + 3x = 4 + -30

Combine like terms: 30 + -30 = 0
0 + 3x = 4 + -30
3x = 4 + -30

Combine like terms: 4 + -30 = -26
3x = -26

Divide each side by '3'.
x = -8.666666667

Simplifying
x = -8.666666667

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