Answer:
X=8
Step-by-step explanation:
I will solve this with my style.
First time 2 for both side to remove /2
and it become this

-2 both side

x=8
Answer:
Step-by-step explanation:
1) The steps here are given.
2) The two angles are equal because they are vertically opposite.
3) The two triangles are congruent by ASA
The first answer is C because the prompt says the total was lessthan 13. Also, the cost of the necklace is added to the cost, not subtracted.
5b+3.5<13
5b<9.5
b<1.9
Because it must be less than 1.9, the highest possible price is $1.89
Answer:
opening the bracket, the expression becomes
12x^2-28-19x^2
collect like terms
12x2-19x^2-28
-7x^2-28
-7(x^2+4)