CarQuestionl506
10.04.2021 •
Chemistry
6. If 4 grams of salt is dissolved in 79 grams of water, what is the total mass of the final solution? [1 mark]
a) 83g
b)4g
c) 79g
d) 81g
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Ответ:
A) 83g
Explanation:
Ответ:
x = 6
Step-by-step explanation:
First step is to distribute the 5(x + 2).
5x + 10 = 6x + 3x - 14
The 6x and the 3x on the right can be combined.
5x + 10 = 9x - 14
Now add 14 to both sides to isolate the 9x.
5x + 24 = 9x
Subtract 5x from both sides.
24 = 4x
Divide by 4 to get x by itself.
6 = x