i have got this question and am a little confused..can u plz solve...(plz provide all steps)...
i) I=130+ (0.25).(Y)
ii) Y=(4).(I) -500
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I(Y) = 130 + 0.25Y
Make Y the subject of formula and then, 'change' the variables, that is replace I by Y and Y by
If that's what you are asking...
4*(I(Y)-130) = Y
Try the other one now.
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