Question

Evaluate each expression if$w=6,x=0.4,y=\frac{1}{2},$ and$z=-3$

41.$z\left(x+1\right)$

Short answer

Expression $z\left(x+1\right)$ results into $-4.2$

Step-by-step solution

- Order for simplification 

To evaluate any expression involving more than one operation, follow the below order of operations:

• First evaluate expressions inside grouping symbols like parentheses ( ) or brackets [ ].
• Evaluate the exponents.
• Perform Multiplication and division from left to right.
• Perform addition and subtraction from left to right.

- Substitute given values

Substitute $0.4$for $x$and $-3$for$z$ into given expression

$z\left(x+1\right)=\left(-3\right)\left(0.4+1\right)$

- Simplify -30.4+1

To evaluate the value of the given expression, first simplify the expression inside the parenthesis and then simplify as shown below

$\begin{array}{c}\left(-3\right)\left(0.4+1\right)=\left(-3\right)\left(1.4\right)\\ =-4.2\end{array}$

Thus, value of $z\left(x+1\right)$$-4.2$is