4(9+7) = 36+28 = 64
open the parentheses, then simplify.
Answer:
The value of
:

Step-by-step explanation:
-To find the value of x, you need to use
and
written as in equation like this:

-Then, you solve for it:





So, therefore the final answer is
.
Answer:
-0.3
Step-by-step explanation:
X---Y---Z. XY+Y ---} 7x+4x+3 ---} 10x+3=0 ---} 10x=-3 ---} x=-0.3
Answer:
49
Step-by-step explanation:
Since we are rounding to the nearest whole number we look at the tenth decimal place (the 1)
Since a one is less than 5 we keep the number the same. If it was over 5 we would round the whole number up to a 50. I hope this makes sense! Have a nice day :D