7b+21=7b-4

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


Simplifying
7b + 21 = 7b + -4

Reorder the terms:
21 + 7b = 7b + -4

Reorder the terms:
21 + 7b = -4 + 7b

Add '-7b' to each side of the equation.
21 + 7b + -7b = -4 + 7b + -7b

Combine like terms: 7b + -7b = 0
21 + 0 = -4 + 7b + -7b
21 = -4 + 7b + -7b

Combine like terms: 7b + -7b = 0
21 = -4 + 0
21 = -4

Solving
21 = -4

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

See similar equations:

| 5x-36=7x+16 | | 8x-4x+8=24 | | 10x-4=12x+4 | | -3(v-8)=-24 | | m=2a-ma | | x^2+y^2-2x-4=0 | | 0.4n+n= | | Y-14=-4(x-17) | | .4(x-5)=10 | | 2x(3)=57 | | 6(c-5d)-(4c+d)= | | -5-12a^2=-209 | | a=3m-am | | 11=6h-13 | | x+4x=3(x+6) | | Y=14-0 | | -46+5x=10x+29 | | f(x)=cos(x)+2x | | 3r-(-17)=50 | | 1.21-3x=-4.79 | | 4y=38-10x | | h*6-1=3 | | 548+29.50x=2023 | | -2x-14=14-x | | -4(r+7)=62 | | 5(x+3)+2(1-x)=3(x-11) | | F(n+1)=-2f+8 | | 15+5x=415 | | 4x+4y=133 | | y/4+2=9 | | 3x+5x=4730 | | 548+29.50=2023 |

Equations solver categories