Question

15a-2b=0
10a+3b-13=0 find a and b
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Answer 1

Answer:

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Answer 2

Answer:

Step-by-step explanation:

15a-2b = 0

multiply it by 3

45a-6b = 0                          => 1

10a +3b-13 = 0

multiply by 2

20a + 6b - 26 = 0                 => 2

add (1) and (2),

10a + 20a +6b - 6b - 26 = 0

30a = 26

a = 13/15

15*(13/15) = 2b

2b = 13

b = 13/2 => 6.5