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Answer:
Explanation:
Substitution:
a) 2x+3y=6
b) x-6y=18
b) x = 6y + 18
a) 2(6y+18)+3y=6
12y+36+3y=6
15y = -36+6
y = -30/15
y = -2
combination/elimination
a) 2(2x+3y=6)
4x+6y=12
(4x+6y=12) + (x - 6y= 18)
4x +x = 12+18
5x = 30
x = 30/5
x = 6
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