Explanation

The expression a(b + c −d) simplifies to:

ab + ac −ad

So, the correct option is: ac + ab - ad

Explanation

To simplify the expression 5x = 3y - 2x - 8y, we can start by combining like terms on the right side of the equation.

Given:

5x = 3y - 2x - 8y

Combining like terms:

5x + 2x = 3y - 8y

Simplifying the expression:

7x = -5y

7x + 5y =0

Explanation

We know that log(a)=1.

Hence, the value of log 10 base 10 =1

this is because of the value of e1=1.

Explanation

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 ND1-1-2023

Explanation

Step-by-step explanation:

(2)3+2+5

=6+2+5

=13

*****

 ND1-1-2023

Explanation

12x + 17 = 65

Subtract 17 from both sides:

12x = 65 - 17

12x = 48

Divide both sides by 12:

x = 48/12

x = 4

Explanation

When you multiply two numbers with different signs (one positive and one negative), the result is always negative. In this case, (-2) multiplied by (+3) equals (-6).

Here's the calculation:

(-2) x (+3) = -2 x 3 = -6

So, the correct answer is -6.

Explanation

0.25(x) + 0.40(100−x) =28

0.25 x + 40 − 0.40 x =28

0.25 x − 0.40 x =28−40

− 0.15 x = −12

x = 0.15/ 12  =80

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ND18-1-2023

Explanation

To solve for x, we need to isolate x on one side of the equation.

3x + 2 = 11

Subtract 2 from both sides:

3x = 11 - 2

3x = 9

Divide both sides by 3:

x = 9/3

x = 3

So, the correct answer is: 3

Explanation