3(x+-7)=9

Simple and best practice solution for 3(x+-7)=9 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)=9 equation: 


Simplifying
3(x + -7) = 9

Reorder the terms:
3(-7 + x) = 9
(-7 * 3 + x * 3) = 9
(-21 + 3x) = 9

Solving
-21 + 3x = 9

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 = 9 + 21

Combine like terms: -21 + 21 = 0
0 + 3x = 9 + 21
3x = 9 + 21

Combine like terms: 9 + 21 = 30
3x = 30

Divide each side by '3'.
x = 10

Simplifying
x = 10

See similar equations:

| 0.5r=-8 | | (140+x)/3=80 | | 8(.25+.75)-6y=20 | | y-2=-2[x-2] | | 0=4+x^2+4x | | x^2-3=5x+3 | | 4x-2=6x-4 | | 64c^2=36 | | (140+x)/3=90 | | X(1000-2X)=100000 | | 3(x-5)= | | (11+i)+(3-15i)=0 | | 4p=44 | | 2x+1=3x+5 | | 2x+6+4x=-8 | | 5d^2-4y^2= | | 9x-6=3-18x | | 5d-4y^2= | | 4n-1=(8+9n)-5n | | 250+1.25x=5.50x | | 4n-2=(8+9n)-5n | | 2.4(m-3)+3.4=-8.2 | | (x-3)37= | | 7-4(n+3)=23 | | -1-11k=-11(k+4)-9 | | (-4+4i)(-3-3i)=0 | | 3d-7=28 | | 33+11x+9=8x+5 | | n/4+2=4 | | 2m^2-24m+64=0 | | w^2+18w-63=0 | | 5(5y-9)=10y |

Equations solver categories