7x+3(4x+3)=161

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Solution for 7x+3(4x+3)=161 equation:


Simplifying
7x + 3(4x + 3) = 161

Reorder the terms:
7x + 3(3 + 4x) = 161
7x + (3 * 3 + 4x * 3) = 161
7x + (9 + 12x) = 161

Reorder the terms:
9 + 7x + 12x = 161

Combine like terms: 7x + 12x = 19x
9 + 19x = 161

Solving
9 + 19x = 161

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 + 19x = 161 + -9

Combine like terms: 9 + -9 = 0
0 + 19x = 161 + -9
19x = 161 + -9

Combine like terms: 161 + -9 = 152
19x = 152

Divide each side by '19'.
x = 8

Simplifying
x = 8

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