Answer:
A.
Step-by-step explanation:
3x + x - 13 + 4 - 6x = 12
we try to combine the elements with the same power of x (including the ones without any x) :
3x + x - 6x
-13 + 4
so, we get
-2x - 9 = 12
-2x = 21
x = -21/2
90 degrees
______________________________________________________________
Answer:
7/10
Step-by-step explanation:
<span> −2.3(x−1.2)=−9.66 remove the brackets by multiplying
-2.3x+2.76=-9.66 collect the like terms
-2.3x=-9.66-2.76
-2.3x=-12.42 divide both sides by -2.3 to find x
x=5.4</span>