Answer:
in this method a variable is expressed in terms of another variable from one equation and it is substituted in remaining equation.
Step-by-step explanation:
solve:x+2y=9 and 3x-y=13.
x+ 2y=9…be the first equation
3x-y=13…be the second equation
from first equation
x=9-2y…be the third equation substituting value of x from third equation in second equation, we get
3(9-2y)-y=13
or, 27-6y-y=13
or, y=2
now,
substituting value of y in third equation, we get,
x=9-2×2
=9-4
=5
the required value of x and y are 5&2
Answer:
3951>3519>3191
Step-by-step explanation:
hope you understood how
Answer:
28
Step-by-step explanation:
FG = BC * 2 = 14 * 2 = 28
Answer:
Alt Int. <s Thm
m<4=45 degrees
Step-by-step explanation:
45=9x
x=5
m<4= 9*5
m^4=45
Answer:
c
Step-by-step explanation: