Answer:
x = 1
Step-by-step explanation:



18x + 5 = 23
18x = 23 - 5
18x = 18
x = 1
Therefore, x = 1 is the solution of the given expression.
Answer:
2.054
Step-by-step explanation:
put the value of x in f(x)
Answer:
f(x) + g(x) = 3x + 7
Step-by-step explanation:
f(x) = 2x + 2, g(x) = x + 5
f(x) + g(x) = 2x + 2 +x + 5
f(x) + g(x) = 2x +x + 5 +2
f(x) + g(x) = 3x + 7
sum of the cube of a number and 27:
x^3 + 27