Answer:
Step-by-step explanation:
The given equation is
4x + 24x - 2 = 7(4x +2)
First step is to expand the parenthesis on the left hand side by multiplying each term inside the parenthesis by the term outside the parenthesis. It becomes
4x + 24x - 2 = 28x + 14
Collecting like terms such that the terms containing x will be on the lefthand side and constant terms will be on the right hand side, it becomes
28x - 28x = 14 + 2
0 = 16
0 cannot be equal to 16. Therefore, there is no solution.
The likely error of my friend was
28x - 28x = x
Erin needs 1.5 cups of flour to make 1 dozen cookies.
Answer:
less than 1 1/2 gallons
Step-by-step explanation:
1/3 + 1/6 = 1/2, so the sum of the three cans is more than 1 by the difference between 1/5 and 1/6. That difference is 1/30 gallon. The sum is 1 1/30 gallons, which is less than 1 1/2 gallons.
__
A suitable common denominator is 2·3·5 = 30. Then the sum of the fractions is ...
1/3 + 1/5 + 1/2
= 10/30 + 6/30 + 15/30
= 31/30 = 1 1/30 . . . . . less than 1 1/2
In decimal, 1/3 ≈ 0.333, 1/5 = 0.200, 1/2 = 0.500, so the sum is ...
0.333 +0.200 +0.500 = 1.033
which is less than 1.5.
You want to start by subtracting 5 from both sides to get 2/3x=-8/3 then cross multiply to get whole numbers which is 6=-24x then your gonna want to isolate the variable so divide both sides by -24 to get 6/-24=x then you can simplify to x=-1/4
Answer:
8x6x4=192. So, the answer is 192.
