Question

Evaluate (6x+3y)-z^(2)÷(2x) when x=-3,y=4,z=-6

Answer 1

Answer:

24.

Step-by-step explanation:

1. Write the expression.

$(6x+3y)-\frac{z^{2}}{(2x)}$

2. Substitute the variables by the respective given value using parenthesis.

$(6(3)+3(4))-\frac{(6)^{2}}{(2(3))}$

3. Simplify the expression by applying the hierarchy or mathematical operations.

a) Solve parenthesis.

$(18+12)-\frac{(6)^{2}}{6}\\ \\30-\frac{(6)^{2}}{6}$

b) Solve the exponent.

$30-\frac{36}{6}$

c) Divide.

$30-6$

d) Subtract.

$24.$