-5x-3(-7x+3)=103

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Solution for -5x-3(-7x+3)=103 equation:


Simplifying
-5x + -3(-7x + 3) = 103

Reorder the terms:
-5x + -3(3 + -7x) = 103
-5x + (3 * -3 + -7x * -3) = 103
-5x + (-9 + 21x) = 103

Reorder the terms:
-9 + -5x + 21x = 103

Combine like terms: -5x + 21x = 16x
-9 + 16x = 103

Solving
-9 + 16x = 103

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 16x = 103 + 9

Combine like terms: -9 + 9 = 0
0 + 16x = 103 + 9
16x = 103 + 9

Combine like terms: 103 + 9 = 112
16x = 112

Divide each side by '16'.
x = 7

Simplifying
x = 7

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