Question

(a) Solve the equation: 7(x+3) = 49
(b) James thinks of a number. He
subtracts 2 and then multiplies by 5
and gets 45. What was his number?
(c) Look at the rectangle below:
14 cm
(
52) CHIA
The area of the rectangle is 17cm2.
What is the value of x?.​

Answer 1

a. 7x + 21 = 49

7x = 49 - 21

7x = 28

x = 4

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b.5x -10 = 45

5x = 35

x= 7

c. area of rectangle = l.b

= 14. b

17 /b = x