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stiv31 [10]
2 years ago
5

-3.1x+7-7.4x-1.5x-6(x-3/2

Mathematics
1 answer:
nalin [4]2 years ago
6 0

Answer:

-2(9x-8)

Step-by-step explanation:

We are to simplify the expression -3.1x+7-7.4x-1.5x-6(x-3/2)

Open the parenthesis

-3.1x+7-7.4x-1.5x-6(x-3/2)

= -3.1x+7-7.4x-1.5x-6x+6(3/2)

= -3.1x+7-7.4x-1.5x-6x+9

Collect like terms

= -3.1x-7.4x-1.5x-6x+7+9

= -12x-6x+16

= -18x+16

= -2(9x-8)

Hence the simplified form of the expression is -2(9x-8)

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2x – Зу = -1<br> + 3x+3y= 26<br> ОА. бу = 25<br> ОВ. 5х = 27<br> Ос. 5х = 25<br> OD. 5x - бу = -27
Brilliant_brown [7]

Answer:

C. 5x=25

Step-by-step explanation:

Given:

2x-3y=-1\\3x-3y=26

Add the two equations, we get

2x-3y+3x+3y=-1+26\\(2x+3x)+(-3y+3y)=25\\5x+0=25\\5x=25

Therefore, the correct option is option C.

5 0
3 years ago
How many solutions does the following system have?<br> y= 5x + 8<br> y = 5x + 3
NARA [144]

Answer:

This system has no solutions.

Step-by-step explanation:

If we try to solve:

  1. 5x + 8 = 5x + 3
  2. 5x + 8 - 3 = 5x
  3. 5x + 5 = 5x
  4. 5x - 5x + 5 = 5x - 5x
  5. 5 = 0

Since there are no x values left over and the remaining solution is zero, there is no solution for this equation.

Hope this helps!!

4 0
2 years ago
Which matrix is equal to
just olya [345]

Answer:

L

O

+

65.91828182

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
vanesa multiplies two integers. When she adds the product to 4, the sum is 0. What can you say about the two integers
Lelu [443]
The Integers Are Positive They Are Not Negative Numbers. If It Was Negative It Would Be -2,-3,-4. While If It's Positive It Should Be 0,1,2,3,4 And So On.
4 0
2 years ago
One number is 1/2 of another number. The sum of the two numbers is 21. Find the two numbers. Use a comma to separate your answer
Romashka-Z-Leto [24]
2x=y
x+y=21
x+2x=21
3x=21
x=7
y=2x
y=14
3 0
3 years ago
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