Question

find x: (1) x+3y=6 (2) 2x-3y=12

Answer 1

Answer:

$x + 3y = 6 \\ 2x - 3y = 12 \\ = = = = = = = \\ - x = - 6 \\ x = 6 \\ \\ \\ x + 3y = 6 \\ \\ 6 + 3y = 6 \\ \\ 3y = 0 \\ \\ y = 0$

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Answer 2

I will try to be precise and accurate.

let's try substitution method .

x+3y=6

x=6-3y...............(3)

putting so in eq(2)

2(6-3y)-3y=12

12-6y-3y=12

-9y=0

y=0.....................(4)

putting y in eq(3)

x=6-3(0)

x=6