Answer:

Step-by-step explanation:
Given

Required
Evaluate

Start by dividing 15 by 3

Apply the following law of indices on indices x and z

So, the expression becomes:



Answer:
x=0, y=-2
Step-by-step explanation:
Let x=3y+6 be equation 1
and 2x-4y=8 be equation 2
sub equation 1 into equation2,
2(3y+6)-4y=8
6y+12-4y=8
2y=-4
y=-2
sub y=-2 into equation 1,
x=3(-2)+6
x=0
sub is an abbreviation for substitute
Answer:
11/8 or 1 3/8
Step-by-step explanation:
hope this helps
If i were you i would divide 297 by 3 , which is 99.