Question

Find the value of x and y
3x+2y=15
4x+3y=21

Answer 1

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Answer 2

Step-by-step explanation:

3x +2y=15

first step is :

3x=15-2y

x=15-2y /3

second step is:

4(15-2y)/3 +3y = 21

60- 8y /3 +3y =21

60 -8y+9y /3 = 21

60+y =21×3

60+y =63

y=63-60

y=3

third step is:

3x+2y=15

3x+2(3)=15

3x+6=15

3x=15-6

3x=9

x=9/3

x=3