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

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Solution for 7(3+x)-4(x+1)= equation:


Simplifying
7(3 + x) + -4(x + 1) = 0
(3 * 7 + x * 7) + -4(x + 1) = 0
(21 + 7x) + -4(x + 1) = 0

Reorder the terms:
21 + 7x + -4(1 + x) = 0
21 + 7x + (1 * -4 + x * -4) = 0
21 + 7x + (-4 + -4x) = 0

Reorder the terms:
21 + -4 + 7x + -4x = 0

Combine like terms: 21 + -4 = 17
17 + 7x + -4x = 0

Combine like terms: 7x + -4x = 3x
17 + 3x = 0

Solving
17 + 3x = 0

Solving for variable 'x'.

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

Add '-17' to each side of the equation.
17 + -17 + 3x = 0 + -17

Combine like terms: 17 + -17 = 0
0 + 3x = 0 + -17
3x = 0 + -17

Combine like terms: 0 + -17 = -17
3x = -17

Divide each side by '3'.
x = -5.666666667

Simplifying
x = -5.666666667

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