Answer:
D -13
Step-by-step explanation:
5x - 3y - z if x = -2, y = 2, and z = -3
5x - 3y - z =
= 5(-2) - 3(2) - (-3)
= -10 - 6 + 3
= -16 + 3
= -13
The values of p for which the equation px = 10 have a solution −5; 1; 20 is -2, 10, 
<u>Solution:</u>
Given, equation is px = 10.
We have to find the values of p for which solutions of given equations becomes -5, 1, 20.
We just need to substitute -5, 1, 20 in given equation as x, to values of p.
Now, For -5 ⇒ p(-5) = 10 ⇒ -5p = 10 ⇒ p = -2
For 1 ⇒ p(1) = 10 ⇒ p = 10
For 20 ⇒ p(20) = 10 ⇒ 20p = 10 ⇒ p = 
Hence, the values of p are -2, 10,
for the solutions -5, 1, 20 respectively.
Answer:
14
Step-by-step explanation:
2-32+52-8=-30+52-8=22-8=14
Answer:
The numbers are 10 and 40.
Step-by-step explanation:
x+4x=50
Answer:
answer is 20
Step-by-step explanation:
do the math five times four equals 20