Answer:
180 degree angles.
Step-by-step explanation:
180 degree angles are straight lines.
First you would want to add all like terms. So add -2x and -x which will give you the equation -3x+8=?. Now you want to get 8 on the other side to simplify the equation even more so subtract 8 on both sides. -3x=-8. Finally you want to isolate x by dividing by -3 on both sides which will leave you with x=8/3 or x=2 2/3
B is the correct answer
C and D would be incorrect as 7 and 15 multiplies to 105 not 115
A is incorrect as -5 and -15 make a positive 75 not a negative 75
Answer:
-5/6
Step-by-step explanation:
Divide fractions is the same as multiplying the first by the reciprocal of the second. So this is now -(1/2)*(5/3). Then you multiply the top by the bottom to get -(5/6)
Answer:
c
Step-by-step explanation:
