Question

Solve the systems of equations, x – 2y = 0, 3x + 4y = 20 *

1 point

a) x = 4, y = 2

b) x = 5, y = 6

c) x = 2, y = 1

d) None of these

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Answer 1

Step-by-step explanation:

by substitution method:-

x=2y..... {1}

3x+4y=20.....{2}

from eqn {1}

3{2y}+4y=20

6y+4y=20

10y=20

y=2

put this value in eqn{1}

x=2{2}

x=4

so option A is correct

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