Answer:
x = -19
Step-by-step explanation:
1. make parentheses disappeared using distribution law.

2. sum up b numbers and x

3. separate x and number to two sides of the equation

4. both side divided by -4

Answer:
f(x)=-10
Step-by-step explanation:
when you have f of x...any x gets the filled in by the number that is next to f
so f(x)=4x+2
f(x)=4*-3+2
f(x)=-10
Answer:
92°F
Step-by-step explanation:
in degrees Fahrenheit,
t=7
f(7)=64 + 4(7)
=92
Answer:
B
Step-by-step explanation:
observe

Answer:
let the numbers be x and y then by given conditions:
x + y = 10 ….. eq 1
and
xy = 9….. eq 2
from eq 2. y = 9/x
put this in eq. 1
x + 9/x = 10
x + 9= 10x
x = 1
now,
xy = 9put value of x
y = 9
Step-by-step explanation:
Hope it is helpful....