sierrasydney9876 sierrasydney9876

05-11-2021
Mathematics

contestada

Solve the following simultaneous equations.
5p - 3q = -17
3p + 2q = 5

Respuesta :

miraismail2909 miraismail2909

05-11-2021

Need to make 2 variables match first
Multiply first equation by -2 and second by 3
So it would be
-10p+6q=34
9p+6q=15
Then substract
-19p=19
P=-1
Plug into first equation
-5-3q=-17
-3q=-12
q=4

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