It is 18 degrees Celsius at 8 am, and 14 degrees Celsius by noon. The change in the temperature from 8am to noon is?

4 degrees Celsius

Step-by-step explanation:

It is asking for the change in temperature, or the difference. In word problems like this it is asking for subtraction.

So you just need to subtract the temperature at noon from the temperature at 8 am.

18 - 14 = 4 degrees

no, the equation would be invalid since they are both not equal.

step-by-step explanation:

here you got

4y-6+4y 2-9

first, you would simplify the equation on the form.

4y-6+4y 2-9

then, move all the terms that contains a y to the left and all the other terms to the right.

+4y-4y+-9-6

finally, you will simplify the left and the right side of the equation.

y=-3