7x-3(x+10)=7(x-4)

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Solution for 7x-3(x+10)=7(x-4) equation:


Simplifying
7x + -3(x + 10) = 7(x + -4)

Reorder the terms:
7x + -3(10 + x) = 7(x + -4)
7x + (10 * -3 + x * -3) = 7(x + -4)
7x + (-30 + -3x) = 7(x + -4)

Reorder the terms:
-30 + 7x + -3x = 7(x + -4)

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

Reorder the terms:
-30 + 4x = 7(-4 + x)
-30 + 4x = (-4 * 7 + x * 7)
-30 + 4x = (-28 + 7x)

Solving
-30 + 4x = -28 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
-30 + 4x + -7x = -28 + 7x + -7x

Combine like terms: 4x + -7x = -3x
-30 + -3x = -28 + 7x + -7x

Combine like terms: 7x + -7x = 0
-30 + -3x = -28 + 0
-30 + -3x = -28

Add '30' to each side of the equation.
-30 + 30 + -3x = -28 + 30

Combine like terms: -30 + 30 = 0
0 + -3x = -28 + 30
-3x = -28 + 30

Combine like terms: -28 + 30 = 2
-3x = 2

Divide each side by '-3'.
x = -0.6666666667

Simplifying
x = -0.6666666667

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