Answer:
-28
Step-by-step explanation:
Since the first number is 10 and they say and the equation said two numbers sum - 18 therefore 10 + x equals to -18
=> 10 + x = -18
now to find the second number collect like terms make x the subject of formula
=> x = -18 -10
substract -18 from -10
x = -28
-28 is your final answer
good luck with your assignment and enjoy
