Question

Evaluate 9(4x – 15) if x = 3.

Answer 1

`\implies {\blue {\boxed {\boxed {\purple {\sf {-27}}}}}}`

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

`\: 9 \: (4x - 15)`

Plugging in the value
`x = 3` in the above expression, we have

➼
`\: 9 \: (4 * 3 - 15)`

➼
`\: 9 \: (12 - 15)`

➼
`\: 9 \: ( - 3)`

➼
`\: - 27`

Note:-

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

P = Parentheses

E = Exponents

M = Multiplication

D = Division

A = Addition

S = Subtraction

`\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{❦}}}}}`

Answer 2

-27

Explanation:

9(4x – 15)

Substitute 3 for x

9((4)(3) - 15)

Multiply (4)(3) = 12

9 ( 12 - 15 )

Subtract 12 - 15 = -3

9(-3)

Multiply 9(-3) = -27