(2x+21)+x=90

Simple and best practice solution for (2x+21)+x=90 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 (2x+21)+x=90 equation:


Simplifying
(2x + 21) + x = 90

Reorder the terms:
(21 + 2x) + x = 90

Remove parenthesis around (21 + 2x)
21 + 2x + x = 90

Combine like terms: 2x + x = 3x
21 + 3x = 90

Solving
21 + 3x = 90

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 3x = 90 + -21

Combine like terms: 21 + -21 = 0
0 + 3x = 90 + -21
3x = 90 + -21

Combine like terms: 90 + -21 = 69
3x = 69

Divide each side by '3'.
x = 23

Simplifying
x = 23

See similar equations:

| 55=-x+280 | | 3(x+2x)=4 | | 2x+(x+(2x-3))=5x-(3x+2) | | 3÷15/9 | | 5x+12=3x+52 | | 6y+8ut+17-4y-10= | | -2.8-5y-3.5-y=-5y-1.4 | | -1(x-8)=10 | | 11x+3=11(x+3) | | 9x+11y=50 | | 32+X+X=180 | | (3x)+(x+8)=360 | | 8w=7-6w | | 6x7/8 | | 9c=2c+14 | | 3x(3x)+5x-2-7x(7x)-5x+4= | | 2x^2-X+12=-3x^2+6 | | 13+(7+(10-6))-8= | | x^4+4x^3-18x^2+x-17=0 | | x/16=3/8 | | 13-X=(3/2)X | | 3(w+1)=3w+3 | | 10/7=-5w | | 4(8+c)=3(c-6) | | 1200/20=x | | x=3(-2)+1 | | -2/7w=4 | | 90.25=3*9.8*r | | 29x-2=30x+5 | | C/2-5=20 | | -16t^2+48t+200=0 | | .13(x+50.00)=117 |

Equations solver categories