Answer:
it is x = 2.7
Step-by-step explanation:
The first step is to move the constant to the right which is 11.45. that way you will perform subtraction between 8.21 minus 11.45. then you calculate that which equals -3.24. then last step, you divide both sides by -1.2. your welcome:)
x = 2.7
-1.2x + 11.45 = 8.21
Subtract 11.45 from both sides to get -1.2x = -3.24.
Divide both sides by -1.2 to get x = 2.7.
y=kx
4=k(-2)
k=-2
y=-2x
when x=30
y=-2*30=-60
