7x+7=9x-21

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


Simplifying
7x + 7 = 9x + -21

Reorder the terms:
7 + 7x = 9x + -21

Reorder the terms:
7 + 7x = -21 + 9x

Solving
7 + 7x = -21 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
7 + 7x + -9x = -21 + 9x + -9x

Combine like terms: 7x + -9x = -2x
7 + -2x = -21 + 9x + -9x

Combine like terms: 9x + -9x = 0
7 + -2x = -21 + 0
7 + -2x = -21

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

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

Combine like terms: -21 + -7 = -28
-2x = -28

Divide each side by '-2'.
x = 14

Simplifying
x = 14

See similar equations:

| -2x-6*-2x-4=20 | | (x-5)(5x+8)=0 | | 12x=8x+3 | | 2(3x+3)=3(x+2) | | 20=-4x-2-6x-2 | | 3x-3=-6x+7 | | X^2+3x=8x-14 | | 20c+=5c+65 | | 4(cos)x=1+2(cos)x | | a-d^2= | | 13(h-7)=9 | | 5ln(5x+2)=30 | | 6n-8n=7(n+5)-5(n+7) | | 3+2yi=-x+6i | | -6(-4+4n)=3(-3-8n)+3n | | -6(-4+4n)=-3(-3-8n)+3n | | 4x+10-2x=38 | | 35+2x=9x | | 7x-2=3x+30 | | 144=11c--26 | | x^3-11x+110=0 | | y=x+2x-24 | | 6a+6=4a+10 | | 5x-15=x+25 | | 7(1-7x)-2x=4+3(1+6x) | | x+(x*0.05)+((x*0.05)*0.01)=250 | | 3a+b-a+2b= | | -6x=3x-45 | | -3(1+5x)+6(1+4x)=9x+1 | | (k-6)(k+1)=0 | | -7v+5(v+5)=-5v-(5-8v) | | 6(p+6)=5p-7(p-4) |

Equations solver categories