3 years ago

Solve the simultaneous equations x + y = 5 x = 1 + y

Mathematics

1 answer:

Dmitriy789 [7]3 years ago

7 0

Answer:

Step-by-step explanation:

Givens:

Eq. 1 ) x + y = 5

Eq 2 ) x = 1 + y

plug x into Eq 1 from Eq 2

(1+y) + y = 5

algebra them out

2y = 4

y = 2

then

x + 2 = 5

x = 3

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