Question

Q No 1.Check whether the given solution is correct or wrong.
a. -3 is the solution of 5x = -15
b. 4 is solution of 9x - 5 = 40
c. 5 is the solution of 2p + 3 = 15
Q. No 2. Solve the following equations by the Transposition method.
a. - 8 = 4 (m +6)
b. y - 23 = 6
c. (7+x) ÷ 6 = 9

Answer 1

Q1)

a) True

b)False

correct answer = 5

c)False

correct answer = 6

Q2)

a) -8 = 4(m+6)

Therefore, -8 = 4(m+6)

or, -8 = 4m+24

or, 4m+24 = -8

or, 4m = -8-24

or, 4m = -32

or, m = -32/4

or, m = -8

b) y-23 = 6

Therefore, y-23 = 6

or, y = 6+23

or, y = 29

c)(7+x) ÷ 6 = 9

Therefore, 7+x/6 = 9

or, 7+x = 9*6

or, 7+x = 54

or, x = 54 - 7

or, x = 47