Answer:
x= -10
Step-by-step explanation:
PEMDAS
First you multiply- -2x?
You don't know what x is so you subtract 4 for 16
16-4=12
2-12= -10
I’m not quite sure what you mean but I’ll try my best, I am assuming that x means multiply and is not a variable;
If you are trying to use distributive property on the equation 7x 1,214= 7x(1000+10);
First solve within the parentheses: 1000+10 is 1010.
Then multiply by the value outside the parentheses, in this case 7: 7(1010)= 7070.
Honestly, I don’t know what is going on with that equation. If X is a variable then it would not make sense but also make sense at the same time. A tip for asking questions, don’t use x as a multiplication symbol since it is used as a variable most often. Good examples of alternatives:
5•5
5(5)
Good luck though.
Answer:
One 25 fl oz bottle costs $8
Step-by-step explanation:
144÷18=8
Answer:
y = (-2) 2^(x+1)
Step-by-step explanation:
Whenever x increases from by 1, y decreases by doubling (the negative value), so the exponent is -2
When x = -1, y = -2.
So the exponential equation (NOT linear) is
y(x) = -2*2^(x+1)
Check:
y(-1) = -2*2^(-1+1) = -2*1 = -2
y(0) = -2*2^(1) = -2*2 = -4
...
y(2) = -2*2^(2+1) = -2*8 = -16
all good.
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