If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3x+4(x+9)=99
We move all terms to the left:
3x+4(x+9)-(99)=0
We multiply parentheses
3x+4x+36-99=0
We add all the numbers together, and all the variables
7x-63=0
We move all terms containing x to the left, all other terms to the right
7x=63
x=63/7
x=9
| 144^2+b^2=225^2 | | 6=3y+24 | | 3(-2u-20)=-6u+7 | | 16=32p | | 31x=-(135+4= | | 2x-5+20+x=60 | | 3(x+2)=12+x | | 12+n/36=1 | | 15^x+6=4 | | 8z÷6=7z+4 | | -10x=-6(4+3x)= | | 1600+100h=2600 | | 5k-4=1 | | 6x+5(4x-18)=66 | | 8+3.5x=16 | | 8+9a=-73 | | 1600+100h=3400 | | 7x+3(x-2)-4x=8 | | 6x+2=5x-2 | | 2.–3=5–4x | | 2x+6=7x−2 | | 20+5x=95 | | 140+40x=180+20x | | 4/3x+5/3=7+1/2x | | 10x=68-2(4-2x)= | | 9x+9=153 | | 360=-185n | | 148=5x+6(3x-6) | | 40+12k=-8k-26 | | x2–3.45x+2.16=0 | | 3x+3=2(7x-15)= | | -280-4h=-480 |