Question

Solve this pair of simultaneous equations.
5x + 2y = 20
x + 4y = 13
X=
y=

Answer 1

y=2.5
x=3

there you go

Answer 2

y= 2.5

x= 3

Explanation:

multiply eqn 2 by 5

5x +20y =65

eqn 2 -1

20-2)y=65-20

18y=45

y=2.5

x+4×2.5 =13

x+10=13

x=3