[tex]3x+2y=20\\3*2+2*n=20\\6+2n=20\\2n=20-6\\2n=14\\n=7[/tex]
( 2 ; n )
3x + 2y = 20
3 × 2 + 2n = 20
6 + 2n = 20
2n = 20 - 6
2n = 14
n = 14 ÷ 2
n = 7
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[tex]3x+2y=20\\3*2+2*n=20\\6+2n=20\\2n=20-6\\2n=14\\n=7[/tex]
( 2 ; n )
3x + 2y = 20
3 × 2 + 2n = 20
6 + 2n = 20
2n = 20 - 6
2n = 14
n = 14 ÷ 2
n = 7