5y – 2z
Answer:
Step-by-step explanation:
We are given the expression:
We want to find the value of the expression when y=8 and z=9. Therefore, we must substitute 8 in for y and 9 in for z.
Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.
Multiply 5 and 8.
Multiply 2 and 9.
Subtract 18 from 40.
The value of the expression 5y-2z at y=8 and z=9 is 22.
1 + 3x - 8x + 7
~
y = –3x + 2
y = –3x + 4
there is no solution, they have the same slope
Answer:
c=20
Step-by-step explanation:
84c −4 = 72c−244
subract 72x from both sides
12c-4=-244
add 4 to both sides
12c=240
divide both sides by 12
c=20
Step-by-step explanation:
In this form, x = 5.
so we'll substitute 5 in for x...
f(5) = -9(5) -10
f(5) = -45 -10
f(5) = -55
essentially saying, when x = 5, y = -55
16.90x + 4y = 36.35
1. What does the solution to the system represent?
Answer:
See below.
Step-by-step explanation:
It represents the coordinates of the point of intersection of the lines represented by the 2 equations.
Do you want them solved?