-3x+15y=21

Simple and best practice solution for -3x+15y=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 -3x+15y=21 equation: 


Simplifying
-3x + 15y = 21

Solving
-3x + 15y = 21

Solving for variable 'x'.

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

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

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

Divide each side by '-3'.
x = -7 + 5y

Simplifying
x = -7 + 5y

See similar equations:

| x+2x=6 | | x-5y=-7 | | 6(-x+1)=-2(-3-6x) | | -2x+3y=20 | | 12x^2-5x-3=0 | | -18+3n=21 | | 4x+y=-15 | | 2a+5=a+8 | | -8k-24=-6(1+k)-5k | | -8x-2y=30 | | -7x-7=-6x-7 | | -6x-5=6x-5 | | -6p+4(8p+7)=-2p | | 9a+2=-25 | | 9a+2=25 | | 1.2x-7+1.8x=20 | | -2r+5s=p | | 20+10x=50+5x | | 4t=2t-26 | | 7y=-21 | | 18x^2-98=0 | | x^4-12x^2-28=0 | | 2x-18=(15-11) | | 9h-3.2-10h=6 | | -4(-3x+2)=8(4x-6) | | 5x^5-x^4-25x^3-5x^2+2x=0 | | -9(t+4)=18 | | 6(9)-6= | | 5(2)+8= | | -3y+7c=a | | 7(8)+10= | | 6g+11-2g=31 |

Equations solver categories