solvefor t,p-2= 7/5 (t-2)

解答

求解

t, p - 2 = \frac{7}{5} (t - 2)

t = \frac{5 p - 10}{7} + 2

求解步骤

p - 2 = \frac{7}{5} (t - 2)

交换两边

\frac{7}{5} (t - 2) = p - 2

在两边乘以

5

7 (t - 2) = 5 p - 10

两边除以

7

t - 2 = \frac{5 p - 10}{7}

将

2

到右边

t = \frac{5 p - 10}{7} + 2

so l v e f or x, x + 7 y = 9

5 m (x) - 3 = 7, 22 x + 4 = - 8, \frac{5}{2} + x = \frac{1}{335} p (x) - 3 = 1

so l v e f or x, 6 x + 4 y = 22

24 y - 10 - 10 y = 12 y + 42

8 - 7 (x - 1) = 2 (x + 5) - 4