If it's not what You are looking for type in the equation solver your own equation and let us solve it.
9a+3=42
We move all terms to the left:
9a+3-(42)=0
We add all the numbers together, and all the variables
9a-39=0
We move all terms containing a to the left, all other terms to the right
9a=39
a=39/9
a=4+1/3
| 21m=315 | | -9(v+1)=-7v-21 | | 2(x+3)=-4(x+1)= | | 39=w/3+14 | | v/4+16=23 | | m–13=–18 | | 4x*12=14 | | j-24=28 | | j-24=28 | | j-24=28 | | j-24=28 | | X+1/6=-2x | | X+1/6=-2x | | 4=j/10 | | 79+9z-7=180 | | h+76=–17 | | 38=m-3 | | 3x+23+x=7 | | f-59=18 | | (3x+5)+5x=45 | | 3x+60=132 | | −z+7= 66 | | 3x(60)=132 | | -50x=110 | | 10-v/4=(v+17) | | 4x+3=171 | | 10-v/4=(v+17 | | 50x-100x=110 | | 12�−8=12x−8= 7�+327x+32 | | 12�−8=12x−8= 7�+327x+32 | | 12�−8=12x−8= 7�+327x+32 | | 10x(5-10)=110 |