(7x-2)-(-3x+1)=-3(1-30)

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Solution for (7x-2)-(-3x+1)=-3(1-30) equation:


Simplifying
(7x + -2) + -1(-3x + 1) = -3(1 + -30)

Reorder the terms:
(-2 + 7x) + -1(-3x + 1) = -3(1 + -30)

Remove parenthesis around (-2 + 7x)
-2 + 7x + -1(-3x + 1) = -3(1 + -30)

Reorder the terms:
-2 + 7x + -1(1 + -3x) = -3(1 + -30)
-2 + 7x + (1 * -1 + -3x * -1) = -3(1 + -30)
-2 + 7x + (-1 + 3x) = -3(1 + -30)

Reorder the terms:
-2 + -1 + 7x + 3x = -3(1 + -30)

Combine like terms: -2 + -1 = -3
-3 + 7x + 3x = -3(1 + -30)

Combine like terms: 7x + 3x = 10x
-3 + 10x = -3(1 + -30)

Combine like terms: 1 + -30 = -29
-3 + 10x = -3(-29)

Multiply -3 * -29
-3 + 10x = 87

Solving
-3 + 10x = 87

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + 10x = 87 + 3

Combine like terms: -3 + 3 = 0
0 + 10x = 87 + 3
10x = 87 + 3

Combine like terms: 87 + 3 = 90
10x = 90

Divide each side by '10'.
x = 9

Simplifying
x = 9

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