Question

Find the output, k, when the input, t, is -7.
k = 10t -19
k=?

Answer 1

k=-89

Explanation:

to understand the solving steps

you need to know about:

• algebra
• PEMDAS

given:

k=10t-19

t=-7

to find:

k

let's solve:

k=10t-19 (given)

k=10.-7-19 (as t=-7)

k=-70-19 (multiply)

k=-(70+19) (factor out negative sign from the expression)

k=-(89) (add)

k=-89

Answer 2

-89

Explanation:

k = 10(-7) - 19

k = -70 - 19

k= -89