The answer is 17/5. First you multiply 5*3=15 then you add 2 which your answer is 17/5.
Answer:
12+96=108
Step-by-step explanation:
Answer:
( , - )
Step-by-step explanation:
4x - 5y = 20 → (1)
2x + y = 4 → (2)
subtract 2x fro both sides in (2)
y = 4 - 2x → (3)
substitute y = 4 - 2x into (1)
4x - 5(4 - 2x) = 20 ( distribute parenthesis and simplify left side )
4x - 20 + 10x = 20
14x - 20 = 20 ( add 20 to both sides )
14x = 40 ( divide both sides by 14 )
x = =
substitute this value into (3)
y = 4 - 2( ) = - = -
solution is ( , - )
Answer:
Option B
Option C
Step-by-step explanation:
we need to divide the coefficient of x by half since it is required for completing square, this term is added and subtracted at the same time to keep the equation intact, so we have
later we have
we know
we have
or
so we have
finally
The second is obtained by summing the two given equations
f(x)=8x-10
g(x)=3x+5
-----------------
f(x)+g(x)=11x-5