SharronH82361 SharronH82361

29-10-2022
Mathematics

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Model with mathematics. Complete this two-column proof by providing the reasons for eachstatement.3x - 5Given:2Prove: x = -3

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DemiaS556930 DemiaS556930

29-10-2022

(3x-5)/2 = -7

Multiply both sides by 2:

2*((3x-5)/2)= 2*(-7)

3x - 5 = -14

Add 5 to both sides:

3x - 5 + 5 = -14 + 5

3x = -9

Divide both sides by 3:

3x/3 = -9/3

x = -3

Hence:

x = -3

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