Spoopycacti2 Spoopycacti2
  • 16-01-2020
  • Mathematics
contestada

What is x and y if x+y=60 and y=x+3

Respuesta :

Diatonic254
Diatonic254 Diatonic254
  • 22-01-2020

x = 28.5

y =  31.5

Step-by-step explanation:

We’ll use the elimination method to solve this simultaneous equation

x+y=60

y=x+3

First we convert the second equation

x + y = 60

-x + y = 3

Then we eliminate;

x + y = 60

- (MINUS)

-x + y = 3

=

2x = 57

x = 57/2 = 28.5

y = 60 – 28.5 = 31.5

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