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BabaBlast [244]
4 years ago
14

Need help with this question (-2x+3a-6)+(-5x-7a)

Mathematics
2 answers:
Valentin [98]4 years ago
5 0
-2x + 3a - 6 - 5x - 7a....combine like terms
-7x - 4a - 6 <==
Elena L [17]4 years ago
3 0
Combine like terms. -2x + -5x = -7x. 3a + -7a = -4a. So the answer is -7x -4a -6.
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Maurinko [17]

Answer:

5 and -6

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Consider the linear system of equations. y = –x + 9 y = 0.5x – 6 If the solution is (a,–1), what is a? a =
Nadusha1986 [10]

Answer:

The value of a is 10.

Step-by-step explanation:

We are given with the following pair of the linear system of equations below;

y = -x+9  and   y = 0.5x-6.

Also, the solution is given as (a, -1).

To find the value of 'a', we have to substitute the solution in the equation because it is stated that (a, -1) is the solution of the given two equations.

So, the x coordinate value of the solution is a and the y coordinate value of the solution is (-1).

First, taking the equation;

y = -x+9

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a = 9 + 1 = 10

Now, taking the second equation;

y = 0.5x-6

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a = 10

Since we get the value of a = 10 from the equations, so the value of a is 10.

8 0
3 years ago
Chen wants to buy a pair of pants that regularly cost $54 . Today, the pants are on sale for 60% of the original price.
s2008m [1.1K]
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3 0
3 years ago
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svet-max [94.6K]

Answer:

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5 0
3 years ago
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ki77a [65]
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hope this helps
5 0
3 years ago
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