3+x+x=15

Simple and best practice solution for 3+x+x=15 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 3+x+x=15 equation: 


Simplifying
3 + x + x = 15

Combine like terms: x + x = 2x
3 + 2x = 15

Solving
3 + 2x = 15

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 2x = 15 + -3

Combine like terms: 3 + -3 = 0
0 + 2x = 15 + -3
2x = 15 + -3

Combine like terms: 15 + -3 = 12
2x = 12

Divide each side by '2'.
x = 6

Simplifying
x = 6

See similar equations:

| x^2+5x=7x+70 | | 23(9x-21)=5 | | 2+6x=32 | | 1-6(x+2)=15 | | 3x+15=17-2 | | t^2+t-72=0 | | (2x+5)+31=(4x-10) | | 7x=2x-18 | | 4x^3-18x^2+16x+13=0 | | 6n-4n+3=-13 | | 2x+7y=25 | | 7x=3x-32 | | 2a+2=1(4a+1) | | 5(7-a)-3(a+4)-4=4(a+3)+7 | | 7b-3=3b+5 | | 3b^2-2b-16=0 | | 4(x-3)=-16 | | 150.00X+1000=1300 | | 14=-9y+4y | | -6(a-5)=7 | | 44=39-2c | | 7k-49=7(6k+3) | | 5y-3y+2=34 | | -3a-12=6 | | -12=m-3k | | -5x+6+10x= | | -2y+4=-6 | | 2*7+-1= | | -4=11-3x | | 1.035v+2.458=7.583 | | 10*-0.4=X | | n+n-11=11 |

Equations solver categories