Question

Aacise 12.4
Se ich of the following are equations with a variable. In case of an equation
17-x=5
(i) 26 - 3=7
(0) 7*3 - 19 = 2
93
(iii) (y - 7) > 5
(vi) 5 x4 -8= 3t
3
(viii) 7 = 11 5 - 12 x 4
< 25
5
Show that the other values do not satisfy the equation.
Fok out the solution from the values given in the bracket next to each equation.
x+ 12 = 20 (12, 8, 20, 0)
() + 4 = 2 (-2, 0, 2, 4)
Complete the entries in the fourth column of the following table:
y
=7 (7,2, 10, 14)
2
(iv) 2y – 3 = 7 (0,3,5,7).
:
Value of variable
Equation satisfied Yes/No
Equation
S.No.
5n = 40
10
5n = 40
8
5n = 40
5
+ 10 = 30
10
x + 10 = 30
20​

Answer 1

Answer:

Step-by-step explanation:

在给定的图中，∥和

彼此分别在P和Q。找到的价值

画一条线段AB = 5.5厘米。在其上找到一个点P，使得AP =

34.梯形的周长是104