Question

What corrects answer should be for the other problems?

Answer 1

$\\ \sf\longmapsto x+5=5+5=10$

#2

$\\ \sf\longmapsto 25/x=25/5=5$

.#3

$\\ \sf\longmapsto 15x=15(5)=75$

#4

$\\ \sf\longmapsto x-4=5-4=1$

Answer 2

Answer:

Evaluate the expression :

If x = 5

1) x + 5 = 10

$\longrightarrow{\sf{x + 5 = 10}}$

$\longrightarrow{\sf{x = 10 - 5}}$

$\longrightarrow{\sf{\red{x = 5}}}$

Hence, the answer is 5.

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2) 25 ÷ x

$\longrightarrow{\sf{25 \div x}}$

Substituting the value of (x=5)

$\longrightarrow{\sf{25 \div 5}}$

$\longrightarrow{\sf{ \dfrac{25}{5}}}$

$\longrightarrow{\sf{ \cancel{\dfrac{25}{5}}}}$

$\longrightarrow{\sf{\red{5}}}$

Hence, the answer is 5.

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3) 15x

$\longrightarrow{\sf{15x}}$

Substituting the value of (x=5)

$\longrightarrow{\sf{15 \times 5}}$

$\longrightarrow{\sf{\red{75}}}$

Hence, the answer is 75.

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4) x - 4

$\longrightarrow{\sf{x - 4}}$

Substituting the value of (x=5)

$\longrightarrow{\sf{5 - 4}}$

$\longrightarrow{\sf{\red{1}}}$

Hence, the answer is 1.

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