8y+7=y+21

Simple and best practice solution for 8y+7=y+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 8y+7=y+21 equation:


Simplifying
8y + 7 = y + 21

Reorder the terms:
7 + 8y = y + 21

Reorder the terms:
7 + 8y = 21 + y

Solving
7 + 8y = 21 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
7 + 8y + -1y = 21 + y + -1y

Combine like terms: 8y + -1y = 7y
7 + 7y = 21 + y + -1y

Combine like terms: y + -1y = 0
7 + 7y = 21 + 0
7 + 7y = 21

Add '-7' to each side of the equation.
7 + -7 + 7y = 21 + -7

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

Combine like terms: 21 + -7 = 14
7y = 14

Divide each side by '7'.
y = 2

Simplifying
y = 2

See similar equations:

| (y-1)(y-1)=2y^2-9y+7 | | 3x^2-10+8= | | 72=6x^2+21x+18 | | 3x+20=-2x+55 | | 6x^2-13x+15=0 | | 12x-5g=33 | | (3x+1)(2x+7)= | | 3x+7=4x-3+15 | | 3x+25=-x+5 | | 0.03x=2+0.01x | | 10-3x+3=4-2(x-3) | | 10+0.10x=0.35x | | x^2-2x=65 | | 15-3y=3y-12 | | c+(4-3c)-2= | | x+516= | | 0.6y+y=y | | h=-16t^2+36t-10 | | 4x^2+xy+4y^2=0 | | 3x(x-2)=18 | | -42=-8z | | 5d+20=7d-14 | | 7+n/(-2)=6 | | (5ab+2a^2b^4)+(2a^2b^4-5ab)= | | 5x+3-2x+10+8x=123 | | n+(n+1)+(n+2)=-33 | | 3y=-9x | | x/3-3=0 | | y^2-6Y+18=0 | | 0.29x^2-4x=-8 | | 4x+8=-2y | | 3c^2+7c-2=0 |

Equations solver categories