2x^+3=21

Simple and best practice solution for 2x^+3=21 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 2x^+3=21 equation: 



2x^+3=21

We move all terms to the left:

2x^+3-(21)=0

We add all the numbers together, and all the variables

2x-18=0

We move all terms containing x to the left, all other terms to the right

2x=18

x=18/2

x=9

See similar equations:

| 2x–10=-4x+20 | | 3u^{3}+7u^{2}+18u+42=0 | | 13x-(6x-2)=37 | | 6x+4=10x-3 | | -7(4x-7)=1-4x | | -5-15k=-4k-8k+10 | | 3(a+6)=a+12 | | 3k=6+2k | | 20z+2z-21z=4 | | 8x-9-3x=36 | | -(x-2)=3x-1+2x | | 2x-4x+1=12 | | 3y+20=1 | | 5r=-4+4r | | 2x+12+3x=32 | | 9(y+7)+6=24 | | 9a-4a+4a-8a=10 | | 35=63-5y | | -8{7x-1}=-489 | | -10+x/3=7 | | 15=4z−1 | | -4.2x+6=5x-6 | | x(3)=27/125 | | 14=2v-4v | | 9.48x-10=12.28 | | 4b-9=2b+7 | | 3x-2+47=90 | | 2s+12+2s+2s=102 | | -2(x+3)+x=-39 | | 6(12+x)+6(x)=672 | | 19t+–16t+–8t=–20 | | 5x-2+x=(-20) |

Equations solver categories