7(x-1)-2(x+1)+3(x-4)=

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Solution for 7(x-1)-2(x+1)+3(x-4)= equation:


Simplifying
7(x + -1) + -2(x + 1) + 3(x + -4) = 0

Reorder the terms:
7(-1 + x) + -2(x + 1) + 3(x + -4) = 0
(-1 * 7 + x * 7) + -2(x + 1) + 3(x + -4) = 0
(-7 + 7x) + -2(x + 1) + 3(x + -4) = 0

Reorder the terms:
-7 + 7x + -2(1 + x) + 3(x + -4) = 0
-7 + 7x + (1 * -2 + x * -2) + 3(x + -4) = 0
-7 + 7x + (-2 + -2x) + 3(x + -4) = 0

Reorder the terms:
-7 + 7x + -2 + -2x + 3(-4 + x) = 0
-7 + 7x + -2 + -2x + (-4 * 3 + x * 3) = 0
-7 + 7x + -2 + -2x + (-12 + 3x) = 0

Reorder the terms:
-7 + -2 + -12 + 7x + -2x + 3x = 0

Combine like terms: -7 + -2 = -9
-9 + -12 + 7x + -2x + 3x = 0

Combine like terms: -9 + -12 = -21
-21 + 7x + -2x + 3x = 0

Combine like terms: 7x + -2x = 5x
-21 + 5x + 3x = 0

Combine like terms: 5x + 3x = 8x
-21 + 8x = 0

Solving
-21 + 8x = 0

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + 8x = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 8x = 0 + 21
8x = 0 + 21

Combine like terms: 0 + 21 = 21
8x = 21

Divide each side by '8'.
x = 2.625

Simplifying
x = 2.625

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