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valentina_108 [34]
3 years ago
14

Rewrite the expression 14m-(5+8m) without parentheses

Mathematics
2 answers:
JulijaS [17]3 years ago
5 0

Answer:

14m-5-8m

Step-by-step explanation:

Triss [41]3 years ago
4 0

Answer: 6m-5

Step-by-step explanation:

First, apply the distributive property and get rid of the parentheses. That will give 14m-5-8m. Now, combine like terms. And that will give the answer 6m-5.

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Solve :<br><br> 5x - 7y = 12<br><br> 5y - 2x = - 7
Afina-wow [57]
There is one solution:

use elimination method

5x - 7y = 12
5y - 2x = -7    ---> change equation around

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2 x ( 5x - 7y) = 2 x (12)    multiply both sides by 2
5 x (-2x +5y) = 5 x (-7)

this give you
 10x - 14y =24 
-10x+25y = -35                    add down
-----------------------------
        11y = - 11                    x is eliminated to find y value
           
            y = -1                         input to one of the original equations

5(-1)  - 2x = -7

-5  - 2x = -7
+5           +5                       add 5 to both sides
----------------------------
-2x = -2
    x = 1

your coordinates for when they intersect is at (1, -1)
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