I need help solving this equation. Thank You
Hi again Pj;
12x+9-4x-4=3x-7-x+30
Let's combine like terms on both sides...
(12x-4x)+(9-4)=(3x-x)+(-7+30)
8x+5=2x+23
Let's isolate x...
Let's subtract 5 from both sides...
-5+8x+5=2x+23-5
8x=2x+18
Let's subtract 2x from both sides...
-2x+8x=2x+18-2x
6x=18
Let's divide both sides by 6...
(6x)/6=18/6
x=3
Let's check our results in the original equation...
12x+9-4x-4=3x-7-x+30
Let's substitute x with 3...
[12(3)]+9-[4(3)]-4=[3(3)]-7-(3)+30
36+9-12-4=9-7-3+30
45-16=2+27
29=29
It works!