7y+21=8y-40

Simple and best practice solution for 7y+21=8y-40 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+21=8y-40 equation:


Simplifying
7y + 21 = 8y + -40

Reorder the terms:
21 + 7y = 8y + -40

Reorder the terms:
21 + 7y = -40 + 8y

Solving
21 + 7y = -40 + 8y

Solving for variable 'y'.

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

Add '-8y' to each side of the equation.
21 + 7y + -8y = -40 + 8y + -8y

Combine like terms: 7y + -8y = -1y
21 + -1y = -40 + 8y + -8y

Combine like terms: 8y + -8y = 0
21 + -1y = -40 + 0
21 + -1y = -40

Add '-21' to each side of the equation.
21 + -21 + -1y = -40 + -21

Combine like terms: 21 + -21 = 0
0 + -1y = -40 + -21
-1y = -40 + -21

Combine like terms: -40 + -21 = -61
-1y = -61

Divide each side by '-1'.
y = 61

Simplifying
y = 61

See similar equations:

| 6•(-3/-8) | | 2.5x+10=180 | | 5x-9x+75=5x+30 | | 3(2x-3)-3=3(x-2)+3 | | 17620232+407950x=647983x | | x^2+20x-350=0 | | N-(-17)=-3 | | 1-1=4 | | 6x-(4x+5)=3x-40 | | 14+13y=20y+-21 | | 8x+48=3x+12 | | 720=32x+120 | | 8-6x+11+3x+4x=13+2*5 | | 8a+6b=58 | | 7(4y-5-8y)=49 | | 447=-24-5n | | 8a-4b=3 | | 17-v=178 | | 3(1-5x)=2(5x+1) | | 8[4-(-9x-6)]=360x+272 | | y=-3(-0)+3 | | .25+18=x | | 5y-7=12y+7 | | 5x+5y=48 | | 3(m-14)+7(m-12)=14 | | log(x+4)-log(x+3)=1 | | 7x+3(3x-2)=4x+8-10x-12 | | 8x-20+2x+30=180 | | 2x^2+35x-5.9=0 | | 18n+7n-2+42=-60 | | (10-3y)+5y=-22 | | 4(5b)+2(6h-1)=-34 |

Equations solver categories