2a-(9-7a)=20

Simple and best practice solution for 2a-(9-7a)=20 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 2a-(9-7a)=20 equation: 



2a-(9-7a)=20

We move all terms to the left:

2a-(9-7a)-(20)=0

We add all the numbers together, and all the variables

2a-(-7a+9)-20=0

We get rid of parentheses

2a+7a-9-20=0

We add all the numbers together, and all the variables

9a-29=0

We move all terms containing a to the left, all other terms to the right

9a=29

a=29/9

a=3+2/9

See similar equations:

| 7+28x=42+21 | | 8t+59=362 | | -6+6x=-10x+3-5x | | 28.61=6g+3.89 | | 10x-3x=11 | | 5/3(2x-5x)+11=36 | | -8(1-3n)=-8(1-3n)+12 | | 5(1x-1)=29 | | 12x^2=-60 | | 9−2u=-3u | | -16=m+9 | | y-9.6=5.55 | | 8n-2=4n+10 | | -3(2x-5x)+9(x+x)=54 | | 4(25+h)=132 | | f(500)=-500^2+250*500 | | 4(25+h)=156 | | 190=80+(10+9)w | | -11v+6v=6(1-3v)-6(1+8v) | | u-23=9 | | 11-c=-10 | | 9(6-4z)+15=-219 | | 5(-6x+1)+5x=4 | | -8=4-6n-8 | | 17y+33=118 | | (2/3)+(1/4)x=-1/6 | | 2x+2×+2-3=20 | | 3x(x-8)=-60 | | -2r=-8−3r | | x+9=8x-36 | | 10+w=-9 | | -55=-5(2m-5) |

Equations solver categories