21-4y=30

Simple and best practice solution for 21-4y=30 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 21-4y=30 equation: 


Simplifying
21 + -4y = 30

Solving
21 + -4y = 30

Solving for variable 'y'.

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

Add '-21' to each side of the equation.
21 + -21 + -4y = 30 + -21

Combine like terms: 21 + -21 = 0
0 + -4y = 30 + -21
-4y = 30 + -21

Combine like terms: 30 + -21 = 9
-4y = 9

Divide each side by '-4'.
y = -2.25

Simplifying
y = -2.25

See similar equations:

| 5(5+10)=3x | | 4x3/2 | | 89-4X=8-7X | | ln(-32/27) | | 4(4+8)=3x | | 4*3/2 | | 8x^2+7x^3-2xy+9x-4x^2=2y | | 5(5+13)=4x | | 15/4=3y | | 18n=3n+6n | | 5*5+13=4x | | y=-5/8(0)-4 | | 0=-5/8x-4 | | Y=17+Bc+c | | -6x+4y=-26 | | S(12)=12*12 | | 12.50x=500 | | x-18.8=77.2 | | 8x^2+7x^3-2xy+9x-4x^2=0 | | m+7=3+m-4 | | 8x+15=180 | | 12b^2-30b+12=0 | | ifx=-1 | | x-1.2=y | | 9x+7y-8x=-20 | | y+6(7-2y)=23 | | -3(x+2)=-3(-x-2) | | y^3-y+2=0 | | (-6)(6)(2)= | | x+5=25X | | 14=60/x | | -8(-51)= |

Equations solver categories