Question

At what point will the graphs of the two equations intersect
x+y=1
10x+5y=7
a.(2/5, 3/5)
b (2/3, 1/3)
c.(1/5, 4,5)
d.( 1 3/4, -3,4)

Answer 1

Its option a

Answer 2

We need to solve two equation Are you familiar with solving equation ?

Answer 3

how did u get that

Answer 4

Let me explain it
x + y = 1
If we multiply this equation by 5 then we get
5x + 5y = 5 getting this ?

Answer 5

Now we need to subtract this equation from second equation

Answer 6

2/5

Answer 7

correct so x = ( 2/5) plug this value into first equation which is x + y = 1
can you try for this ?