7x-4(-4x-3)=172

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Solution for 7x-4(-4x-3)=172 equation:


Simplifying
7x + -4(-4x + -3) = 172

Reorder the terms:
7x + -4(-3 + -4x) = 172
7x + (-3 * -4 + -4x * -4) = 172
7x + (12 + 16x) = 172

Reorder the terms:
12 + 7x + 16x = 172

Combine like terms: 7x + 16x = 23x
12 + 23x = 172

Solving
12 + 23x = 172

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 23x = 172 + -12

Combine like terms: 12 + -12 = 0
0 + 23x = 172 + -12
23x = 172 + -12

Combine like terms: 172 + -12 = 160
23x = 160

Divide each side by '23'.
x = 6.956521739

Simplifying
x = 6.956521739

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