Answer:
1
Step-by-step explanation:
Answer:
2x+12
Step-by-step explanation:
add the 7 and the 5, you don't need to answer the equation you just need to shorten the equation.
Answer:
x=7
y=2
Step-by-step explanation:
10 + 2x = -2y ➡y = -5-x
replace y with -5-x in the first equation
-5-x-x = 9➡ -2x-5 = 9 ➡-2x = 9+5 ➡ x = -7
now use this information to find value of y
y - (-7)=9 ➡y = 2
