7x+4=21

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


Simplifying
7x + 4 = 21

Reorder the terms:
4 + 7x = 21

Solving
4 + 7x = 21

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

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

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

Combine like terms: 21 + -4 = 17
7x = 17

Divide each side by '7'.
x = 2.428571429

Simplifying
x = 2.428571429

See similar equations:

| pizk+21=1046 | | -5(x+7)-5(x+7)= | | (x+3)-2(2-5x)=6(x+3)-4 | | 2w^2+5w-12= | | 12=a^4-11a^2 | | 6-13i/18-17i | | 0=4x^2+174x+486 | | 2w^2+5w= | | 10(y+8)= | | 16x^2+64x+64=25 | | 1x+1x+1.4x= | | (4x-9)(8x+7)=0 | | 2b-6=10/2 | | 3+4(x-1)=3-9(x-7) | | 2(-10-4X)=-4 | | 2(7+6X)=50 | | -4(7X-9)=8 | | X+6=-5X-6 | | 8.7=-4.9x^2+30.5x+8.7 | | -(x+4)+(5z+1)=-2(z+1) | | (x+4)+(5z+1)=-2(z+1) | | 2/5x+1/4=x/10+1/8 | | 2x^2(x-3)=0 | | (D^2+3D+2)y=e^5x | | (D^2-3D-2)y=e^5x | | 4(5X-5)=80 | | m^3+6m^2+11m+6=0 | | (x+x+2+x+4+x+6)/7=4 | | (4x+12)/7=4 | | y=0.7x+5 | | 102=0.5x^2+25x-173 | | 3x-15+4=99+|7x| |

Equations solver categories