solvefor h,ln=1214h*o

解答

求解

h, l \cdot n = 12 \cdot 14 h \cdot o

h = \frac{l n}{168 o}; o \neq = 0

求解步骤

l n = 12 \cdot 14 h o

交换两边

12 \cdot 14 h o = l n

两边除以

12 \cdot 14 o; o \neq = 0

h = \frac{l n}{168 o}; o \neq = 0

a = ∣ 1 - 3 ∣ + 1

so l v e f or x, x y + 5 x = 4 y + 38

\frac{x + 4}{3} = \frac{31}{2}

so l v e f or x, 5 x - 7 y = 27