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fredd [130]
3 years ago
11

(2a divided by 7) - (a-4)

Mathematics
1 answer:
Shkiper50 [21]3 years ago
6 0

Answer:

a=28/5 or 5.6

Step-by-step explanation:

2a/7=a-4

Multiple both sides of the equation by 7

2a=7a-28

Subtract 7a from both side

2a-7a=-28

Like Term

-5a=-26

Divide -5 from both side

a= 5.6

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Solve the system of linear equations by elimination.<br><br> 4x−3y=8<br> 5x−2y=−11
AleksandrR [38]

Answer:

(-7, -12)

Step-by-step explanation:

4x-3y=8

5x-2y=-11

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(I will try to remove the y like terms so i will multiple both of them by the opposite so both of the ys will be 6)

2(4x-3y=8)

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(now the easy part… cancel the 6s and add the equations)

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Replace x in any of the equations and you’ll get the y value.

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4(-7)-3y=8

-28-3y=8

-3y=36

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2 years ago
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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<u />

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