History: I)1-2(2x+1)=1-(x-1)ii)3.6x-6.1=5.9_2.4xquestion from equation and inequality

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I)1-2(2x+1)=1-(x-1)ii)3.6x-6.1=5.9_2.4xquestion - id1221113661592410109152, masonprice

Ответ:

crysderria

16.03.2022

History

1.. x = -1

2.. x =2

Explanation:

Given

$i).\ 1-2(2x+1)=1-(x-1)$

$ii).\ 3.6x-6.1=5.9-2.4x$

Solving (i):

1-2(2x+1)=1-(x-1)

Subtract 1 from both sides

1-1-2(2x+1)=1-1-(x-1)

-2(2x+1)=-(x-1)

Open brackets

-4x -2 = -x + 1

Collect Like Terms

x - 4x =2+1

-3x = 3

Divide both sides by -3

$x = \frac{3}{-3}$

x = -1

Solving (ii):

3.6x-6.1=5.9-2.4x

Collect Like Terms

2.4x+3.6x=5.9+6.1

6x=12

Divide both sides by 6

$x = \frac{12}{6}$

x =2

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I)1-2(2x+1)=1-(x-1)
ii)3.6x-6.1=5.9_2.4x
question from equation and inequality

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