5x+2y=9
-3x-2y=-7
The +2y and -2y eliminate
2x=2
x=1
Hope This Helps and God Bless!
Answer:
2
Step-by-step explanation:
57x + 1 = 115
57x = 115 - 1
57x = 114
x = 114 / 57
x = 2
Both x and y are 79 degrees because vertical angles are congruent.
Answer:
13
Step-by-step explanation:
9 + 2 x (3 - 1)
PEMDAS says parentheses first
9 + 2 x (2)
Then we multiply and divide
9+4
Then add and subtract
13
Answer:
x=3
Step-by-step explanation:
We are taking 2 times the sum ( addition) of 18 and x
2 ( 18+x) = 42
Divide each side by 2
2 /2 ( 18+x) = 42/2
18+x = 21
Subtract 18 from each side
18+x-18 = 21-18
x = 3