Question

2(1-3y) - 13x evaluate if x= 4 and y = -9 Evaluate each expression given the variable replacement

Answer 1

The given expression is

$2(1-3y)-13x$

The value of x is 4

The value of y is -9

Substitute x by 4 and y by -9 in the expression above

$2(1-3\lbrack-9\rbrack)-13(4)$

We will multiply -3 by -9 first

$2(1+29)-13(4)$

Multiply -13 by 4

$2(1+29)-52$

Add 1 and 29, then multiply the answer by 2

$\begin{gathered} 2(30)-52= \\ 60-52 \end{gathered}$

Subtract 52 from 60

$60-52=8$

The value of the expression is 8