leverso

26.07.2019 • 

Mathematics

Hi, i've recently started doing proofs in math, and i've gotten through most of it, but i am still absolutely clueless when it comes to these questions; could someone and explain to me how this works? ? question 1: what is the reason for #4? given: 4x + 1 = 6x - 2, prove: x = 3/2 (1) 4x + 1 = 6x - 2 (2) 4x + 3 = 6x (3) 3 = 2x (4) 3/2 = x ? (5) x = 3/2 question 2: what is the reason for #3? given: 3x - 4 = 2(x + 8), prove: x = 20 (1) 3x - 4 = 2(x + 8) (2) 3x - 4 = 2x + 16 (3) 3x = 2x + 20 ? (4) x = 20i am desperate to

Ответ:

Terrilady5

31.05.2020

Mathematics

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4x + 1 = 6x - 2, Prove: x = 3/2  
-4x     =-4x
1         =2x-2
-1       =-1
0       =2x-3
0       =2x+(-3)
2/3=2/3 

3x - 4 = 2(x + 8), Prove: x = 20 
3x- 4  =2x+16
+4      =+4
3x      =2x+20
-2x     =-2x
1x       =20

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Ответ:

smelcher3900

11.04.2021

Mathematics

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There are 4 ducks and 7 pigs im pretty sure  Hope i helped you

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