X = 9
you multiply both sides by 3 because you have to get rid of it and what you do to one side you do to the other then you divide both sides by 2 to isolate the variable. i hope that makes sense.
Answer:
432
Step-by-step explanation:
26x^2+16x
Can I get Brainliest please
Answer: 0 represents the surface of the ocean
Step-by-step explanation: Words like 'below' indicate a negative number. Since the dolfin's positions is -9 below the sea level, the equation x-9=-9 can be created (let x = ocean surface level). Add 9 to both sides to cancel out -9 on the left side and isolate x. You have x = 0, so the ocean surface is 0.
Of course, you don't have to do all that! That was a in-depth explanation. Just make sure to look at the wording :P
I got 1.9875. Just do exactly what the problem says. 26.50*25%=6.625 26.50-6.625=19.875 19.875*10%=1.9875
