If it's not what You are looking for type in the equation solver your own equation and let us solve it.
w+2w=-15
We move all terms to the left:
w+2w-(-15)=0
We add all the numbers together, and all the variables
3w+15=0
We move all terms containing w to the left, all other terms to the right
3w=-15
w=-15/3
w=-5
| -2x(2x+10)=-116+4x | | 3=v/2-5 | | (5n-9.1=) | | 0,1x^2-0.6x+0.9=0 | | 119-u=168 | | 9+4(1+7k)=-26 | | (-5n-9.1=) | | a*a+2a=15 | | 3x8=x(3x4) | | 3a-26=6-2a | | 7x-3=12-2x | | 3(y−6)+7=10 | | 12=2x=28 | | 70/2x=14 | | | | 24=6(-e-3-) | | 7x=+21+27=90 | | 7y-4+2+6=180 | | y-2/4=10 | | -9(2h-8)=32+3h | | 2(3x+6=18) | | 9(x-2)=4x3 | | 13x-3=3x=2+55 | | 3q=7+10q | | 13x-3=3x=2=55 | | 3e–9=11 | | 2(7z-3)=-24 | | 15x-5=10(x-1) | | -8(3x-4)=152 | | 1/2(y)(8)=10 | | 7(2x—5)=49 | | 4x+2/2=3x-5 |