21y=20y-7

Simple and best practice solution for 21y=20y-7 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 21y=20y-7 equation: 


Simplifying
21y = 20y + -7

Reorder the terms:
21y = -7 + 20y

Solving
21y = -7 + 20y

Solving for variable 'y'.

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

Add '-20y' to each side of the equation.
21y + -20y = -7 + 20y + -20y

Combine like terms: 21y + -20y = 1y
1y = -7 + 20y + -20y

Combine like terms: 20y + -20y = 0
1y = -7 + 0
1y = -7

Divide each side by '1'.
y = -7

Simplifying
y = -7

See similar equations:

| -7*-8+3*1=1 | | -7*4+3*-9=1 | | -2(2)+1= | | 10p=20 | | 9(11)+2(-7)=-5 | | 5*(x+8)=50 | | 9(-2)+2(1)=-5 | | 5*x+8=50 | | 9(0)+2(-4)=-5 | | 9(5)+2(6)=-5 | | -7=2(2)+8 | | 2=2(-3)+8 | | x+8=2(x-13)+4 | | -3=2(5)+8 | | 18=2(5)+8 | | 10x+8=49-1 | | 3x+196=757 | | -4=6(0)-7 | | y^4+5y^3-6y^2=0 | | -13=6(-11)-7 | | -5=6(3)-7 | | 5=6(2)-7 | | 3x-7=662 | | 4+6n=n-1 | | 2(4)+5(8)=-9 | | 2(-2)+5(-1)=-9 | | y^4+5y^3-6y^3=0 | | 2(0)+5(3)=-9 | | 22x-15y=-1 | | 10x+2+4=66 | | 3(8)-2(-5)=4 | | 3(4)-2(8)=4 |

Equations solver categories