If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-3=21+3x
We move all terms to the left:
-3-(21+3x)=0
We add all the numbers together, and all the variables
-(3x+21)-3=0
We get rid of parentheses
-3x-21-3=0
We add all the numbers together, and all the variables
-3x-24=0
We move all terms containing x to the left, all other terms to the right
-3x=24
x=24/-3
x=-8
| 8h+6=7h | | 8(x+12=80 | | 7-6u=37 | | 8x-7x=60 | | 4(x+5)-11=-19 | | 121/x-13=-2 | | 9(x-5)-18=18 | | 11x−10=25 | | 8x-7x=42 | | 0=y/3+15 | | z2-9=0 | | 6+(y)/(5)=21 | | 2.5x−4=8 | | 5.1=17.9-8y | | 7(x+17)-10=130 | | 8x+6+7x+24=180 | | 7(x+16)=56 | | 86.4=8.5d | | 3t-8=10 | | 6(x-11)-18=-138 | | 6(x+11)+12=78 | | Y=100x+5600 | | Y=100x+5609 | | x5+6=1 | | 7x-15=34 | | 4(x+7)+19=55 | | 4=r÷5 | | 5(-6+5x)=24+8x | | w=14=16 | | 10(x+8)+10=10 | | -12+y/3=-10.8 | | 8(x+12)+9=161 |