Solve for y. 7y - 6y - 10 = 13?
y = -23
y = -3
y = 3
y = 23
回答 (10)
✔ 最佳答案
7y - 6y - 10 = 13
7y-6y=13+10
y=23 answer//
7y - 6y - 10 = 13
y = 13 + 10
y = 23
Answer: y = 23 or the 4th among the list of possible correct answers
Checking:
7(23) - 6(23) - 10 = 13
161 - 138 - 10 = 13
13 = 13
7y - 6y - 10 = 13
y = 13 + 10
y = 23
answer
For one, under no circumstances set a variable to something except you comprehend what that's meant to be (do no longer purely "set x to 0"). in any different case, the way I do algebra is to think of of shifting issues around. Like If i choose for to remedy for y in y+5x=10, i'm going to purely circulate the 5x to the superb, and opposite the sign. so which you come back up with y=10-5x. in case you opt for to remedy for x in that equation, get x and each little thing related to it on one element: 5x=10-y (I in simple terms moved y over and reversed the sign). The you purely divide via the form in front of x on the alternative element: x=(10-y)/5. i wish you comprehend a thank you to simplify something like (10-y)/5.
7y - 6y is the same as y.
so y - 10 = 13
13 + 10 = y
y = 23
7y - 6y - 10 = 13
7y - 6y = 13 + 10
y = 23
7y - 6y = 10 + 13 (you keep the y's on the left side)
y= 23
This is correct.
(7y - 6y leaves you with only 1y)
7y - 6y - 10 = 13
y - 10 = 13
y = 23
y = 23
y - 10 = 13
y = 23
simple
收錄日期: 2021-05-01 12:29:43
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