Answer:
5
Step-by-step explanation:
if xz is 15 and xy is 10 then we can infer that z is 10 and x is 5
Answer:
The value is 27
Step-by-step explanation:
Answer:
The answer is 3.
Step-by-step explanation:
Given that the Indices Law is,


So the expression is :





-2x+4y=4 Equation 1
x-2y=6 Equation 2
Solving by substitution method.
Isolate x from equation 2.
x=2y+6
Substitute value of x in equation 1
-2(2y+6)+4y=4
-4y-12+4y=4
-12=4
-16=0
Which is false.
Answer: No solution