10x+-3(x+7)=12

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Solution for 10x+-3(x+7)=12 equation:


Simplifying
10x + -3(x + 7) = 12

Reorder the terms:
10x + -3(7 + x) = 12
10x + (7 * -3 + x * -3) = 12
10x + (-21 + -3x) = 12

Reorder the terms:
-21 + 10x + -3x = 12

Combine like terms: 10x + -3x = 7x
-21 + 7x = 12

Solving
-21 + 7x = 12

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 + 7x = 12 + 21

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

Combine like terms: 12 + 21 = 33
7x = 33

Divide each side by '7'.
x = 4.714285714

Simplifying
x = 4.714285714

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