X-13=42
x is the "variable", you're taking 13 away from that, and the answer is also given, 42.
3-7 is -4 so it becomes -4x=4 divide both sides by 4 to get -x=-1 a lot of teachers dont like that negative x so you can also divide by -1 again to make it x=1
hope it helps
You spent $145 hope it helps
Factor<span>: 3x^2 - </span>33x<span> + </span>84<span>. </span>Factor<span> out the Greatest Common </span>Factor<span> (GCF) = 3 3(x^2 - 11x + .... </span>Factor<span> trinomial completely: </span>3x2+33x+84<span>? </span>3x2<span> - </span><span>33x</span>
