Question

(d) When I subtracted 11 from twice a number, the result was 15.
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Answer 1

Answer:

2x - 11 = 15.....

hope it helps you

Answer 2

$\huge\bold{\mathbb{QUESTION}}$

When I subtract $11$ from twice a number, the result was $15.$ Find the number.

$\huge\bold{\mathbb{GIVEN}}$

• When I subtract $11$ from twice a number, the result was $15.$

$\huge\bold{\mathbb{TO\:\,FIND}}$

The number.

$\huge\bold{\mathbb{SOLUTION}}$

Let the number be $x.$

According to condition,

$2x-11=15$

Adding $11$ to both sides.

$\implies 2x-11+11=15+11$

$\implies 2x\;\cancel{-11}\;\cancel{+11}\:=26$

$\implies 2x=26$

Dividing both sides by $2.$

$\implies {\dfrac{2x}{2}}={\dfrac{26}{2}}$

$\implies {\dfrac{\cancel2x}{\cancel2}}=\cancel{{\dfrac{26}{2}}}$

$\implies x=13$

$\huge\bold{\mathbb{HENCE}}$

$x=13$

The number $=x=13$

$\huge\bold{\mathbb{THEREFORE}}$

The number is $13.$

$\huge\bold{\mathbb{DONE}}$