7y+(5y-9)-6=21

Simple and best practice solution for 7y+(5y-9)-6=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 7y+(5y-9)-6=21 equation:


Simplifying
7y + (5y + -9) + -6 = 21

Reorder the terms:
7y + (-9 + 5y) + -6 = 21

Remove parenthesis around (-9 + 5y)
7y + -9 + 5y + -6 = 21

Reorder the terms:
-9 + -6 + 7y + 5y = 21

Combine like terms: -9 + -6 = -15
-15 + 7y + 5y = 21

Combine like terms: 7y + 5y = 12y
-15 + 12y = 21

Solving
-15 + 12y = 21

Solving for variable 'y'.

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

Add '15' to each side of the equation.
-15 + 15 + 12y = 21 + 15

Combine like terms: -15 + 15 = 0
0 + 12y = 21 + 15
12y = 21 + 15

Combine like terms: 21 + 15 = 36
12y = 36

Divide each side by '12'.
y = 3

Simplifying
y = 3

See similar equations:

| a+(-27)=1.07 | | x^3-2x-4=0 | | 5y-(3y-2)=22 | | 8x+15=25 | | 9(36x-36-4x-20)=144(x+5) | | -11-6=7-9x | | P=9+1.50(t-1) | | x-(-9)=9 | | 5+6b=8b-32-7 | | 5+30b=8b-4-7 | | 6a-4=12 | | a+(-3)=-5 | | 2x-(x+4)=9 | | 7x-4(20-x)=3 | | r=(d+10)t | | 4y+7=y+17 | | 5y-1=2y+9 | | 2(2n+2)=60 | | 2(5y-6)=3(3y-7) | | -6(v+4)=-8(1+v) | | 48-9x=102 | | 2n+5+4n=35 | | -6(a+6)=-3(5a-6) | | 10m-21=27+18m | | 4(3x-8)=40 | | 10m-21=27+18 | | 4-a=-6 | | 6(-6x+7)=14-8x | | 100x+80=120x-40x+300 | | 4z+6=2z+11 | | 6(6x+7)=14-8x | | 7x-14=6x-8 |

Equations solver categories