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

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


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

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

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

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

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

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

Solving
-17 + 3x = 4

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 = 4 + 17

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

Combine like terms: 4 + 17 = 21
3x = 21

Divide each side by '3'.
x = 7

Simplifying
x = 7

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