Question

slove the following simultaneous
5x+y=-3​

Answer 1

Explanation:

assume x=1

5(1)+y=-3

y=-3/5

y=-0.6

put y value in euation

5×x+(-0.6)=-3

5x-0.6=-3

5x=-3+0.6

x=-2.4/5

x=-0.48

now substitute the x and y values

5×-0.48+(-0.6)

-2.4-0.6

==-3

L.H.S=R.H.S

also proved