Question

Chapter - Simple Equations

Part 1
Set up equations and solve the unknown number in the following cases.


Question - Anwar thinks of a number. It he takes away 7 from 5/2 of the number, the result is 11/2.

Answer - ?

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Answer 1

$\large\huge\purple{\sf{Answer}}$

$\colorbox{len} {Let the number Answer thinks be }x$

$\colorbox{li} {Then,} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \frac{5}{2} x - 7 = \frac{11}{2}$

$\colorbox{lig} {or} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \frac{5}{2}x = \frac{11}{2} + 7$

$\colorbox{lig} {or} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \frac{5}{2} x = \frac{11 + 14}{2}$

$\colorbox{lighen} {or} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \frac{5}{2} x = \frac{25}{2}$

$\colorbox{lig} {Multiply both the sides by } \frac{2}{5}$

$⇒ \frac{2}{5} \times \frac{5x}{2} = \frac{2}{5} \times \frac{25}{2}$

$⇒x = 5$

$\large\red{\sf{Hence \: answer \: is \: 5}}$

$\\ \\ \\ \\ \\ \colorbox{lightgreen} {\red★ANSWER ᵇʸɴᴀᴡᴀʙ⌨}$

Answer 2

Answer:

(please mark me as a brainliest) Hope this will help u out

Step-by-step explanation:

let number be x

5/2x-7=11/2

5/2x=11/2+7

5/2x=25/2

x=25/2×2/5

x=5