7a=4a+21

Simple and best practice solution for 7a=4a+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 7a=4a+21 equation: 



7a=4a+21

We move all terms to the left:

7a-(4a+21)=0

We get rid of parentheses

7a-4a-21=0

We add all the numbers together, and all the variables

3a-21=0

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

3a=21

a=21/3

a=7

See similar equations:

| 36-(2c+4)=2(c+6)+6 | | 2/5/t=2/3 | | 3r+7=-5;2 | | (c+4)-4c-(1-2)=3 | | -10-(3x+2)=6(4x-2x)+16 | | x2+26x+168=0 | | 7-7b+73=-9b+3-9b | | 2t-10=4;3= | | 5x²+12x+6=0 | | 5=8(7+10d) | | 3a=44-2a | | x(2x-3)=-1+3x(1-x) | | 5c+4=2(c+5) | | C+(3x3-3)=21 | | J=15/3x5-4+4 | | 3/36=18/x | | 2/3×m=1/2 | | 60x-52=220x | | 6=7x+5x^2 | | 5(3h*5)=48h | | (12/7)q^2-(3/2)q+7=0 | | 9-5(4n-8)=7n-(-9-3n) | | (12/7)q^2-3/2q+7=0 | | 4(5x+3)=39 | | 12/7q^2-3/2Q+7=0 | | x+x^2=199 | | 4(2n-7=12 | | 3(2x+6)=2×+4+4x | | 7x+7=4-(9x-8) | | x+(x-14)=20 | | 10x-3/12=2 | | 2(4x+2)-2(x-2)=-(2x+12) |

Equations solver categories