Question

Simplify the algebraic expression and show how you did it -
3k - 7k + 7 - 10k

Answer 1

-14k + 7 .
combine like terms 3k - 7k = -4k + -10k
then get -14k the just bring the 7 down to get -14k + 7 .. hoped it helps .

Answer 2

-14k+7

Explanation:

Multiply k and 3

Multiply k and 1

The k just gets copied along.

The answer is k

k

3*k evaluates to 3k

Multiply k and 7

Multiply k and 1

The k just gets copied along.

The answer is k

k

7*k evaluates to 7k

3*k-7*k evaluates to -4k

3*k-7*k+7 evaluates to -4k+7

Multiply k and 10

Multiply k and 1

The k just gets copied along.

The answer is k

k

10*k evaluates to 10k

-4k - 10k = -14k

The answer is -14k+7

3*k-7*k+7-10*k evaluates to -14k+7

The final answer is

-14k+7

(I used a calculator called WebMath :) Sorry if its really confusing! )