Answer:
The answer to the equation is y = 2.
Explanation:
How can we solve this problem?
To start, we need to take care of everything in the parentheses.
Since there are not like terms, parentheses has been fulfilled.
Now, we move on to distribution. We need to multiply 7 by everything in the parentheses.
Equation: 2 (7 - 3y) -3y = -4
2 * 7 = 14
2 * -3y = -6y
14 - 6y - 3y = -4
Combine like terms.
-6y - 3y = -9y
14 - 9y = -4
We still have more work to do.
14 - 9y = -4
14 - 14 - 9y = -4 - 14
-9y = -18
-9y/-9 = -18/-9
To figure out -18/-9, we know that 9 times 2 equals 18. Since 9 and 18 are both negative in this case, and we know that eighteen is the total, we know that a negative times a positive always results in a negative. So, because 9 is negative, 2 must be positive. Another way to check this is in multiplication and division, two negatives make a positive.
y = 2
So, the answer, if we are trying to find the y value is y = 2.