Question

How do you solve y=2x and y=12-x?

Answer 1

Answer:

Step-by-step explanation:

y=2x....(1)

y=12-x...(2)

Substituting (1)in(2),

2x=12-x

3x=12

So,x=4.

Substituting the value of x in (1),

y=2x=2x4=8

I found the answer through substitution method.

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Answer 2

Hey Ma8 ,

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(1) => Y = 12 - X

(2) => Y = 2X

put 2 equation in 1 equation

2X = 12 - X

2X + X = 12

3X = 12

X = 12 ÷ 3

X = 4

put X = 4 In 2 equation

Y = 2 × 4

Y = 8

hence , X = 4 and Y = 8

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