7=21-4x

Simple and best practice solution for 7=21-4x 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 7=21-4x equation:



7=21-4x
We move all terms to the left:
7-(21-4x)=0
We add all the numbers together, and all the variables
-(-4x+21)+7=0
We get rid of parentheses
4x-21+7=0
We add all the numbers together, and all the variables
4x-14=0
We move all terms containing x to the left, all other terms to the right
4x=14
x=14/4
x=3+1/2

See similar equations:

| (2x-1)*(x+1)-(x-3)*(x+5)=20 | | 7(2x+4)-5(x-10=60 | | 2x-7=107 | | 3x-5=122 | | (4x-2)+(5x+10)+(2x+14)=x | | 5(6a-7)=35 | | 4+5y=195 | | -(x-8)+4x=2(-x+6)+x | | x²+3x=(2-x)² | | 19x-15=-6x | | -(x-8)+4x=2(-x+4)+x | | (25-y)y=100 | | 5x-1+60=12x+10 | | 3d-2/8=d+16.25 | | y+3/y-1=4/y-1 | | -7/10f+2/5=1/4f | | 5y=34+6 | | 0.15*x=15 | | 5x+1=5x+6 | | 5+6=8x | | 25/100=p/800*100 | | (x-1)(x²-x+1)+x(2x-1)(x+1)-x-(x+1)²=0 | | 8/m=3/15 | | 8/m=3*15 | | (x-1)(x²-x+1)+x(2x-1)(x+1)-x-x+1)²=1 | | -6.5x=-29 | | (x-1)(x²-x+1)+x(2x-1)(x+1)-x-x+1)²=0 | | 12r2+25r+12=0 | | 5x-40+3x-2=180 | | f(1)=(3(1)-4)² | | 5x-40+3x-60=180 | | 2(0.25y-1)+1.5y=8.5 |

Equations solver categories