A first number plus twice a second number is 3. Twice the first number plus the second totals 9.find?

1. 1+1x=3  

2. 2x+5=9

chicken chicken chicken

step-by-step explanation:

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answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb