Answer:
10x -6
Step-by-step explanation:
f(x) = 5x + 2x = 7x
g(x) = 3x - 6
f(x) + g(x) = 7x+ 3x-6
= 10x -6
1.4375
<u>Step-by-step explanation:</u>
Step 1:
Let the given equation be 
To find X simplification of terms using BODMAS ( Brackets Orders Division Multiplication Addition Subtraction) is done as follows.
Step 2:
Let us expand the equation as 
Step 3:
Let us expand it further as 
Step 4:
To find X segregate X in one side and all other remaining terms in other side as follows

After the simplification the numerical value is

Step 5:
Keep X along one side and bring 48 to the denominator of another side to find X as follows

And the value of X is 1.4375
Answer:
108ft³
Step-by-step explanation:
V=(base area) (h/3) = 81 (4
/3) =108ft³
Answer:
x = 18
Step-by-step explanation:
b squared + x squared = 30 squared
Answer:
9
Step-by-step explanation: