If it's not what You are looking for type in the equation solver your own equation and let us solve it.
12a+4=40(a=3)
We move all terms to the left:
12a+4-(40(a)=0
| 12a+4=40a=3 | | 2x-8=4x+2x | | 8l+2l+2=42 | | (3x+9)^2-12=6 | | 6(r-2)=27-7r | | 8-2k=k-7 | | (12-3x)(7x+5)=0 | | 6x=4+2x-20 | | a=6(5)•6(5) | | c=2.8/7.5+.75 | | 2/3=10/w | | -34+7x=3(-4+6x) | | 2x-9=x5 | | 9x+44-77=6x+3-77 | | -5t=-10-4t | | x=164*1/2 | | -34+7x=3(-4+6x | | 3(x-5)=-7=-3x+8 | | n+6=10+2n | | -5(5-6x)=3+2x | | 3x+6x+2x=132 | | 5x+3x+2x=-60 | | -15+x=7(4-6x) | | -0,82-(3,18+0,06p=3,94p-2p | | 3y-29=2y-16 | | 2/5y+3/8y=2+1/4y | | C=2x3.14x9.5= | | 2v=4+6v | | -8(-5x-8)=20-4x | | x-1/2=71/2 | | u/6+15.1=4.1 | | C=2x3.14x5.8= |