-7x+15y=21

Simple and best practice solution for -7x+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 -7x+15y=21 equation: 


Simplifying
-7x + 15y = 21

Solving
-7x + 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.
-7x + 15y + -15y = 21 + -15y

Combine like terms: 15y + -15y = 0
-7x + 0 = 21 + -15y
-7x = 21 + -15y

Divide each side by '-7'.
x = -3 + 2.142857143y

Simplifying
x = -3 + 2.142857143y

See similar equations:

| -89+3x=41-2x | | 5r-13=-48 | | ln*(x+1)+ln*(2x-4)=2*ln*6 | | 74r-9-2r=18 | | 74-9-2r=18 | | -4y+1y=-3 | | 20x-13y=5 | | n+6.5=20 | | 12t+5=53 | | -107-x=-9x+133 | | 0=16t^2-27t-10 | | 8c-5-c=51 | | 1y+27=9y+19 | | 3d-.4=11 | | -100-6x=170+3x | | Y+27=9y+19 | | Y=0.20x+134 | | -1+x=-2+y | | 3a-8=9a-74 | | Y=0.90x+134 | | -2m-6+19+(-4m)+9= | | Y^2+8y=-12 | | -1+x=-1+y | | -5+m=10 | | 10s-96=5s-36 | | 6*a=33 | | 2x^2+10x-256=0 | | 4.5b-5.25+3=3.75 | | 6u-97=3u-40 | | X^2+17s+c=0 | | 4-6x-3(2x+5x)= | | -31=3y+9-8v |

Equations solver categories