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2 years ago

Please solve this!!!!!

Mathematics

1 answer:

vfiekz [6]2 years ago

4 0

Answer:

(1, 2 )

Step-by-step explanation:

Given the 2 equations

3x + y = 5 → (1)

5x - 4y = - 3 → (2)

Rearrange (1) expressing y in terms of x by subtracting 3x from both sides

y = 5 - 3x → (3)

Substitute y = 5 - 3x into (2)

5x - 4(5 - 3x) = - 3 ← distribute and simplify left side

5x - 20 + 12x = - 3

17x - 20 = - 3 ( add 20 to both sides )

17x = 17 ( divide both sides by 17 )

x = 1

Substitute x = 1 into (3) for corresponding value of y

y = 5 - 3(1) = 5 - 3 = 2

Solution is (1, 2 )

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