Question

Sum of 15,-2 and 7 is​

Answer 1

`\longrightarrow{\blue{20}}`

`\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}`

`\:15 + ( - 2) + 7`

➺
`\: 15 - 2 + 7`

➺
`\: 22 - 2`

➺
`\: 20`

Note:-

`\sf\pink{PEMDAS\: rule.}`

P = Parentheses

E = Exponents

M = Multiplication

D = Division

A = Addition

S = Subtraction

`\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{.}}}}}`

Answer 2

20

Explanation:

15+(-2)+7=13+7=20