7(X-3)=9(X+1)

Simple and best practice solution for 7(X-3)=9(X+1) 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 7(X-3)=9(X+1) equation:


Simplifying
7(X + -3) = 9(X + 1)

Reorder the terms:
7(-3 + X) = 9(X + 1)
(-3 * 7 + X * 7) = 9(X + 1)
(-21 + 7X) = 9(X + 1)

Reorder the terms:
-21 + 7X = 9(1 + X)
-21 + 7X = (1 * 9 + X * 9)
-21 + 7X = (9 + 9X)

Solving
-21 + 7X = 9 + 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.
-21 + 7X + -9X = 9 + 9X + -9X

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

Combine like terms: 9X + -9X = 0
-21 + -2X = 9 + 0
-21 + -2X = 9

Add '21' to each side of the equation.
-21 + 21 + -2X = 9 + 21

Combine like terms: -21 + 21 = 0
0 + -2X = 9 + 21
-2X = 9 + 21

Combine like terms: 9 + 21 = 30
-2X = 30

Divide each side by '-2'.
X = -15

Simplifying
X = -15

See similar equations:

| 8x-27=-x+18 | | -1(x-4)=5 | | 3(g+7)=5g-13 | | -8(x+6)=16 | | 63-4c=11-10c | | -10(x-6)=30 | | 63-4c=11-10x | | 28.50+0.75x=36.75 | | 5x+38=8x-14 | | 4x^2-37x+85=0 | | (x+1)(x-1)-x^2+2x=3 | | (2xy+x)dx+(x^2+y)dy=0 | | -1(x-9)=3 | | -3(x-10)=3 | | 3m+6=60-3m | | 11-8X=13-3X | | 4m-3=12m-83 | | 22-5(6v-1)=-23 | | 6ft+4ft=x | | 7+5m=51+m | | 9m-18=6m+3 | | 18.1+h=118.12 | | 2m+54=6m+10 | | 10m+8=4m+26 | | 7m-24=53 | | 6(x-5)-4=-34 | | 2x+19=25 | | 2m-9=8m-27 | | 8-(3z-2)=9-4z | | -4(8+n)=8 | | 5(5-z)=4(z-5) | | -7(6x-5)=-91 |

Equations solver categories