7x+3(4x-13)=189

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Solution for 7x+3(4x-13)=189 equation:


Simplifying
7x + 3(4x + -13) = 189

Reorder the terms:
7x + 3(-13 + 4x) = 189
7x + (-13 * 3 + 4x * 3) = 189
7x + (-39 + 12x) = 189

Reorder the terms:
-39 + 7x + 12x = 189

Combine like terms: 7x + 12x = 19x
-39 + 19x = 189

Solving
-39 + 19x = 189

Solving for variable 'x'.

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

Add '39' to each side of the equation.
-39 + 39 + 19x = 189 + 39

Combine like terms: -39 + 39 = 0
0 + 19x = 189 + 39
19x = 189 + 39

Combine like terms: 189 + 39 = 228
19x = 228

Divide each side by '19'.
x = 12

Simplifying
x = 12

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