x+2y=21

Simple and best practice solution for x+2y=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 x+2y=21 equation: 


Simplifying
x + 2y = 21

Solving
x + 2y = 21

Solving for variable 'x'.

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

Add '-2y' to each side of the equation.
x + 2y + -2y = 21 + -2y

Combine like terms: 2y + -2y = 0
x + 0 = 21 + -2y
x = 21 + -2y

Simplifying
x = 21 + -2y

See similar equations:

| 3n+9=7n-15 | | 5x-6=6-x | | 12+9x=8-4x | | 13+8x=11-4x | | 6x+12=11x-33 | | 11x=x^2-40 | | 6(52-1)-5(2+2)=17(2+1) | | 7w-10-2w+2=6 | | 4M+2(m+1)=-10 | | -28=10w-3w | | 3x+-4=4-x | | 3y-2y+8=4 | | 3(2x+5)-4(x-2)=3(2x+2)+1 | | 4=2(v-3)-4v | | 2b(4b+1)=0 | | 3(y+7)+4y=2y-3(y-7)+8y | | 3(3x+5)=2(6x-3) | | 256=16v | | 10=18+4(3x+7) | | 1a-2+3=-2 | | -112=7n | | 9=11y | | 6+-14= | | 3(y+7)-4y=2y-3(y-7)+8y | | 5t+10-9= | | 5-3x=0 | | 3(2x-5)+4=31 | | 7x+3x+5=0 | | 5x-y=8 | | 9n=-5 | | 9x-4=3x+3 | | 4(x+5)=3(x-6) |

Equations solver categories