Solutions To Mathematics Textbooks/Basic Mathematics/Chapter 2

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Chapter 2[edit]

Section 1[edit]

11[edit]

ax + by = u\,

cx + dy = v\,


acx + bcy = uc\,

acx + ady = va\,

(acx + bcy)-(acx + ady) = uc - va\,

bcy - ady = uc - va\,

y(bc - ad) = uc - va\,


y = \frac{uc-va}{bc-ad}