If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-3.1=8.1+v/7
We move all terms to the left:
-3.1-(8.1+v/7)=0
We add all the numbers together, and all the variables
-(v/7+8.1)-3.1=0
We get rid of parentheses
-v/7-8.1-3.1=0
We multiply all the terms by the denominator
-v-(8.1)*7-(3.1)*7=0
We add all the numbers together, and all the variables
-1v-78.4=0
We move all terms containing v to the left, all other terms to the right
-v=78.4
v=78.4/-1
v=-78+0.40000000000001/1
| b-10b-15=-6 | | 6–2(x+4)=32 | | 5(2d-5)-4=4(d+3)+13 | | 3.5x-2.7=11.65 | | 3+t=21/4 | | 0987654321x1234567890=10x | | -24=-7y+5(y=-6) | | 31/2x2.7=11.65 | | t+16=26 | | 5x-72-2x=-26 | | 2-7a=-5 | | 0.1^x=5 | | 7s+-16s+12s+-7s+-11s=15 | | 6u+5=35 | | (x-1/2)-100-(x-1/2)-100=200 | | w/10=-3 | | 44-(3x+4)=18x | | 3(4z-9)+1=4(z+6)-2 | | 44-(3x+4)=18 | | 12j-9j+4j-2j=15 | | X-1/2-100-x-1/2-100=200 | | 5d-10=2d+5 | | z/4+1/2=3 | | -5c-16.2=3.8 | | 4h-5(h+6)=17 | | 2y+25=31 | | 5m+15=2m | | 6x-20=5x+6 | | 2(2x+7)=4(2x+3) | | 98=11x+10 | | 20p-15p-p-4p+2p=20 | | 0.5=1.1^x |