3(x-1)+4(x+5)=31

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Solution for 3(x-1)+4(x+5)=31 equation:


Simplifying
3(x + -1) + 4(x + 5) = 31

Reorder the terms:
3(-1 + x) + 4(x + 5) = 31
(-1 * 3 + x * 3) + 4(x + 5) = 31
(-3 + 3x) + 4(x + 5) = 31

Reorder the terms:
-3 + 3x + 4(5 + x) = 31
-3 + 3x + (5 * 4 + x * 4) = 31
-3 + 3x + (20 + 4x) = 31

Reorder the terms:
-3 + 20 + 3x + 4x = 31

Combine like terms: -3 + 20 = 17
17 + 3x + 4x = 31

Combine like terms: 3x + 4x = 7x
17 + 7x = 31

Solving
17 + 7x = 31

Solving for variable 'x'.

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

Add '-17' to each side of the equation.
17 + -17 + 7x = 31 + -17

Combine like terms: 17 + -17 = 0
0 + 7x = 31 + -17
7x = 31 + -17

Combine like terms: 31 + -17 = 14
7x = 14

Divide each side by '7'.
x = 2

Simplifying
x = 2

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