7x-21+9=30

Simple and best practice solution for 7x-21+9=30 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 7x-21+9=30 equation: 



7x-21+9=30

We move all terms to the left:

7x-21+9-(30)=0

We add all the numbers together, and all the variables

7x-42=0

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

7x=42

x=42/7

x=6

See similar equations:

| 7+8n=-3+3n | | 3.0=x/1.0-x | | 2x-20+6x+10=180 | | m-1=3m+4 | | 8x-2(3x+5)=15 | | Y=3.5x+2.3 | | x+15=-4x–18 | | 4(7x+5)=-188 | | 6x-18+2=2 | | 87=3x-15 | | 3(x-7)=-3(2-x) | | 4t=3.5=2.25 | | 3h^2+3h+16=0 | | -7y=-8−3y | | 1-3x*7=9x^2-3 | | (3x-5)^2=32 | | 2(4x-8)=2x=26 | | 22.82=4g+3.74 | | 2{4x-8}=2x=26 | | 5(1.5)-y+1.5+2y+6=180 | | -9−5t=1−7t | | -6m=-8m+6 | | (5/x)+45=10x | | 6-(3c+4)=2(c+4)+c | | 3+7w=-4+8w | | 2.6g=17.5 | | 3.4−2.8d=+2.8d−1.3 | | w+33/8=16/8 | | 7(3x-4)=11x-8 | | -18h=-19h−12 | | 1/2(x+5)=-3x-10 | | 15x-4=9x+2 |

Equations solver categories