If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3.14=3.14r*2
We move all terms to the left:
3.14-(3.14r*2)=0
We add all the numbers together, and all the variables
-(+3.14r*2)+3.14=0
We get rid of parentheses
-3.14r*2+3.14=0
We move all terms containing r to the left, all other terms to the right
-3.14r*2=-3.14
r=-3.14/1
r=-3.14
| -4y+7(y+3)=33 | | y-0.75y=0 | | 4x+7+6x+12=39 | | 0.8-6÷0.4=y | | 5c+4c=5c | | 2(2n+3)=4n+6 | | 5(r+2)=2r+16 | | 2x–3=x+12 | | 11x+10-7x-22=24 | | 2/5(j+40=-4 | | 3t+5=3(t+5) | | B=2x+10 | | 4/9x=35/6 | | -11+3d=1 | | 1.4x+0.65=8 | | 351=m+222 | | 3x-10=30-5x | | A=x+4 | | 252=16t^2+20t+336 | | 155=12y+35 | | 9n÷3=8n+4 | | 4/7n=2/3 | | 8^(x+6)=5^(x) | | -26=7(6+x) | | 8=-z-4/2 | | 6x+2-10x/2=9 | | 35-x=20-x | | 60+70+(56+x)=180 | | -2(d+12)=-16 | | 70+50+(72+x)=180 | | -8=z/3-10 | | 6(-15m-3)=4(-18m-18) |