1+3(x+3)=13

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Solution for 1+3(x+3)=13 equation: 


Simplifying
1 + 3(x + 3) = 13

Reorder the terms:
1 + 3(3 + x) = 13
1 + (3 * 3 + x * 3) = 13
1 + (9 + 3x) = 13

Combine like terms: 1 + 9 = 10
10 + 3x = 13

Solving
10 + 3x = 13

Solving for variable 'x'.

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

Add '-10' to each side of the equation.
10 + -10 + 3x = 13 + -10

Combine like terms: 10 + -10 = 0
0 + 3x = 13 + -10
3x = 13 + -10

Combine like terms: 13 + -10 = 3
3x = 3

Divide each side by '3'.
x = 1

Simplifying
x = 1

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