21=2y+7

Simple and best practice solution for 21=2y+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 21=2y+7 equation:


Simplifying
21 = 2y + 7

Reorder the terms:
21 = 7 + 2y

Solving
21 = 7 + 2y

Solving for variable 'y'.

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

Add '-2y' to each side of the equation.
21 + -2y = 7 + 2y + -2y

Combine like terms: 2y + -2y = 0
21 + -2y = 7 + 0
21 + -2y = 7

Add '-21' to each side of the equation.
21 + -21 + -2y = 7 + -21

Combine like terms: 21 + -21 = 0
0 + -2y = 7 + -21
-2y = 7 + -21

Combine like terms: 7 + -21 = -14
-2y = -14

Divide each side by '-2'.
y = 7

Simplifying
y = 7

See similar equations:

| 3.7=1.8x-3.9 | | 4x-5+x=37 | | -3(-j-10)=2(10j+4)-19j | | x^2-17=20 | | 0.85y+5=y-0.6 | | 2x-15=3x+20 | | 5u+5=-20 | | 0.5(4z+6)+18.2=0.7(4z-4) | | -3(10s-7)-8=17s | | 605= | | x-4.5=-7.2 | | 1x-38+148=180 | | x^3-10x^2+33x-32=0 | | -3(1-9h)=2(12h+3) | | 12-4y=3y | | (x*x)+9=3x | | B-3(4)=24 | | 4.5x=7.2 | | y=11x+30 | | 45.92=7(2c-9) | | 9+2(12q+5)=13q-17+17q | | 8x-5=25+3x | | 7=4u+3 | | x/2-17=20 | | (2x-1)+3(1x-5)=-2(2x+1) | | -8.4u+27=0.3u-173.97 | | 1-14=6-3(1-4) | | -3x-5+2=24 | | -8(b-4)=-9b | | 3a+16=6 | | 3a-16=6 | | sin(55)=x/13 |

Equations solver categories