Question

X+y=26
3x+8y=123
What is x equal

Answer 1

x=17, y=9. (17, 9).

Explanation:

x+y=26

3x+8y=123

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x=26-y

3(26-y)+8y=123

78-3y+8y=123

78+5y=123

5y=123-78

5y=45

y=45/5

y=9

x=26-9=17