7b+15=4b-21

Simple and best practice solution for 7b+15=4b-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 7b+15=4b-21 equation: 



7b+15=4b-21

We move all terms to the left:

7b+15-(4b-21)=0

We get rid of parentheses

7b-4b+21+15=0

We add all the numbers together, and all the variables

3b+36=0

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

3b=-36

b=-36/3

b=-12

See similar equations:

| 5(0.5×a)=2(0.5+a) | | 2(2c+4)+8=36 | | 3/20=x1/100 | | (x-1)+x+(x+17)=180 | | -6x+26=5(1-8x)+3x | | 9s-13=4s+17 | | 22=–2a+10 | | 5(0.5×l)=2(0.5+l) | | 4d-4=2d+2 | | 4m-3/4=-(9+4m)/8 | | (4x)+(3x+1)=50 | | 9b-8=2b+6 | | 5(2b-4)=4b+22 | | 6k-41=36-k | | 24-(8x3)-22=80 | | 2c+5=4c-11 | | 4x-12x=24-84-4x | | x+5=7+4 | | 2.3(7/f)=2.3 | | 5x-9=x+3=2x+2 | | 13x+14=90 | | 12y-54=4y+43 | | 2g+6=4g-2 | | 50=2(x+16) | | 7l+15=l-21 | | 1=3x+7=90 | | 10w-27=4w+21 | | 2x+4-4x=7 | | 8x²-69x-195=0 | | 4x(2+1)=36 | | 3m+4=m-10 | | 7=500x+5000 |

Equations solver categories