8y-21=5y-30

Simple and best practice solution for 8y-21=5y-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 8y-21=5y-30 equation:


Simplifying
8y + -21 = 5y + -30

Reorder the terms:
-21 + 8y = 5y + -30

Reorder the terms:
-21 + 8y = -30 + 5y

Solving
-21 + 8y = -30 + 5y

Solving for variable 'y'.

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

Add '-5y' to each side of the equation.
-21 + 8y + -5y = -30 + 5y + -5y

Combine like terms: 8y + -5y = 3y
-21 + 3y = -30 + 5y + -5y

Combine like terms: 5y + -5y = 0
-21 + 3y = -30 + 0
-21 + 3y = -30

Add '21' to each side of the equation.
-21 + 21 + 3y = -30 + 21

Combine like terms: -21 + 21 = 0
0 + 3y = -30 + 21
3y = -30 + 21

Combine like terms: -30 + 21 = -9
3y = -9

Divide each side by '3'.
y = -3

Simplifying
y = -3

See similar equations:

| f(3/5)=9X-4 | | 14=5k-6 | | 9h+12=3 | | k-8=2.78 | | 3k+6=15k | | m-(-1.1)=4.67 | | 1/yx=4 | | m-1.19=1.11 | | 2d=3.4 | | tan(55)=x/x-3 | | (x^2-9)-(x^2-25)= | | (x-4)/(6-x)=0.5 | | 14.28=f-(-12.88) | | 5r+12=6R-32 | | -7x+4=y | | c+6=17.65 | | 4.59=3f | | (x^2-25)-(x^2-9)= | | 3(p-7)=15 | | 16.6=4k | | 7a-9=4a+15 | | 3c+4=-5 | | 12w+75=147 | | 9x+x^2=-4 | | 2x-5+4x-13+x=90 | | -w^2+50w+800=0 | | 2(r+3)=6 | | 5(a+3)=20 | | 5a-3=20 | | 2z=814 | | 15+8i=3x-4yi | | 15000(1.07)4= |

Equations solver categories