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Alina [70]
2 years ago
14

only number 4, and please include the working. also do it with the substitution method not elimination or any other.​

Mathematics
1 answer:
sergiy2304 [10]2 years ago
6 0

Answer:

x = -2 and y = 1

Step-by-step explanation:

→ Rearrange x - y = -3 to make y the subject

-y = - x - 3 so y = x + 3

→ Substitute into 2x + y = -3

2x + x + 3 = -3

→ Simplify

3x + 3 = -3

→ Minus 3 from both sides

3x = -6

→ Divide both sides by 3

x = -2

→ Substitute x value into first equation

-4 + y = -3

→ Add -4 to both sides

y = 1

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The equation is

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3 years ago
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Hey there!

Let's pull out the multiples of each number and see which ones fall in line first.

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2 years ago
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The taxi fare in a city is $3 and then $0•40 for every kilometre travelled.A taxi fare is $9.How far has the taxi travelled​
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3 years ago
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