9x+3(2x-1)=21

Simple and best practice solution for 9x+3(2x-1)=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 9x+3(2x-1)=21 equation:


Simplifying
9x + 3(2x + -1) = 21

Reorder the terms:
9x + 3(-1 + 2x) = 21
9x + (-1 * 3 + 2x * 3) = 21
9x + (-3 + 6x) = 21

Reorder the terms:
-3 + 9x + 6x = 21

Combine like terms: 9x + 6x = 15x
-3 + 15x = 21

Solving
-3 + 15x = 21

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + 15x = 21 + 3

Combine like terms: -3 + 3 = 0
0 + 15x = 21 + 3
15x = 21 + 3

Combine like terms: 21 + 3 = 24
15x = 24

Divide each side by '15'.
x = 1.6

Simplifying
x = 1.6

See similar equations:

| ln(5x^2)=4 | | 5x=60+y | | h(t)=-16t^2+72t+7 | | 5x=60+x | | 8x-2=12x-34 | | 3(x-2)=5(2x-6) | | 3x=12+4x | | 2(5k+3)-4(k+7)= | | x+28=1 | | 2x+9=7x-16 | | 4p^2=-8+3 | | 4(6+v)= | | 8t*t= | | x^3+3y^2-25y-75=0 | | 9X+8x-8x=11 | | 6n-22=-12+8n | | -39x+39=0 | | 119/72 | | 6f^2+29=0 | | -39x+18+21=0 | | 7r-18=-30+r | | 4m^2+8m+16=23 | | 2-2x+5=11 | | 5.50=.26x+.77 | | 5X+-5x=o | | t=35+7x | | -8w=12 | | 3y-10+y+28=7y+20-5y | | -3/10t=5/6 | | 0.15p-1.5=6 | | u=4.2+0.75+u | | 3x-10+x+14=144 |

Equations solver categories