Question

if length =(x-5)cm
breadth = 8 cm and area is 3 x
cm^ 2 .Find x
​

Answer 1

Answer:

Step-by-step explanation:

Correct Question:-

if length =(x-5) cm  and breadth = 8 cm and area is 3x cm^ 2 .Find x .

ANSWER:-

• Length given is x-5
• Breadth is 8
• And area given is 3x cm^2

Concept:-

$\sf{Area = Length \times Breadth}$

Let's Solve!

Calculating the area ,

$\bf{(x-5) \times 8 = 3x}$

$\sf{8x - 40 = 3x}$

$\sf{8x-3x = 40}$

$\sf{5x = 40}$

$\bf{x = 8 }$ is the answer.

​What if to find the Area and Length?

Area will be 3*8 = 24 cm^2

Length will be 8-5 = 3 cm.

Do not forget to put the units at last.

Answer 2

Answer:

x=8

Step-by-step explanation:

A=lb

3x= (x-5)8

3x= 8x-40

40= 8x-3x

40 = 5x

40/5 = x

8 = x