If it's not what You are looking for type in the equation solver your own equation and let us solve it.
5+2a=18
We move all terms to the left:
5+2a-(18)=0
We add all the numbers together, and all the variables
2a-13=0
We move all terms containing a to the left, all other terms to the right
2a=13
a=13/2
a=6+1/2
| -17+6x+2x^2=3 | | X^3*8x=0 | | x-27=(27-x) | | u-43/8=4 | | 35×70=m*35 | | 0.75(8x+4)−1=4x+14 | | 5x-1=x+27 | | .12x-75.89=32x-27.41 | | 5x-1=+27 | | 5(s-90)=10 | | 5x+10=7x+18 | | 6s−4=8(2+4/1s) | | 5(s–90)=10 | | 12.4y+14=6y2 | | 16t=2.5 | | 2.5t=16 | | -n/6+12=-7 | | 7n+5=19(n=2) | | 18.4-3.2=n | | x-(x*0.20)=299000 | | 8n-7n=12-4 | | 5z+2-10=7z-8-2z | | w=62×32 | | 4.5p+3=18.45 | | n=62-42 | | (Y+7)/3=1+(3y-2)/5 | | a=23-1 | | y2+y=20 | | 4.05p+14.40=4.50(p+3)4.05p+14.40=4.50(p+3) | | x+4/7=9/14 | | 10x+7=6x+3 | | x2+5=51/16 |