3[X+7]=30

Simple and best practice solution for 3[X+7]=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 3[X+7]=30 equation: 


Simplifying
3[X + 7] = 30

Reorder the terms:
3[7 + X] = 30
[7 * 3 + X * 3] = 30
[21 + 3X] = 30

Solving
21 + 3X = 30

Solving for variable 'X'.

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

Add '-21' to each side of the equation.
21 + -21 + 3X = 30 + -21

Combine like terms: 21 + -21 = 0
0 + 3X = 30 + -21
3X = 30 + -21

Combine like terms: 30 + -21 = 9
3X = 9

Divide each side by '3'.
X = 3

Simplifying
X = 3

See similar equations:

| ln(x)+ln(X+10)=ln(39) | | 19+5h=2h+13 | | 2(L+2)+2L=32 | | 4.5m=-31.5 | | 11x+12=2x^2 | | 8.4=x+2 | | 8x-y=54.6 | | 33x+11y+55z= | | (x-8)(2x+4)=0 | | 8.25w=-49.5 | | 9x+x=58 | | 0=18x-9(x*x) | | 2(w+2)+2w=27 | | 2x+-9=4 | | 0=18x-9x*x | | z^2-14=72 | | -3p+8=5-8p-15 | | 7(8+2k)=182 | | m-8=28 | | (x)159+(y)7=1000 | | 4y-14=2y+6 | | N+47=75 | | 3y=(2y-1)+4 | | -9.5x-0.05=10.5+1.05 | | 1000=1.50x-(1780+1.10x) | | 0=2(x*x)+32x | | 5n+16=1 | | 45-11h=4h | | ln(x)3.4= | | 5n-4=37 | | 22+3b=-2 | | 4.5+x=8.05 |

Equations solver categories