Question

Which of the following equation has x = 8 is solution?

Answer 1

SOLUTION

COMPLETE QUESTION

Which of the following equations has 8 as solution

a. X + 5 = 3

b. Y - 3 = - 5

c. A/4 = 2

d. Z - 5 = - 3

EVALUATION

a. Here the given equation is

X + 5 = 3

We solve it as below

X + 5 = 3

⇒ X = 3 - 5

⇒ X = - 2

So this option is not correct

b. Here the given equation is

Y - 3 = - 5

We solve it as below

Y - 3 = - 5

⇒ Y = - 5 + 3

⇒ Y = - 2

So this option is not correct

c. Here the given equation is

$\displaystyle \sf{ \frac{A}{4} = 2}$

We solve it as below

$\displaystyle \sf{ \frac{A}{4} = 2}$

$\displaystyle \sf{ \implies A =4 \times 2}$

$\displaystyle \sf{ \implies A = 8}$

So this option is correct

d. Here the given equation is

Z - 5 = - 3

We solve it as below

Z - 5 = - 3

⇒ Z = - 3 + 5

⇒ Z = 2

So this option is not correct

FINAL ANSWER

Hence the correct option is

$\displaystyle \sf{ c. \: \: \: \frac{A}{4} = 2}$

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