can someone help me understand this •_•

Answer:
A 5
solution:7x=1
divide both side buy 7
7x/7=1/7
x=0.143
Answer:
[tex]A. \: 3x + 6 = 4 x \: + \: 7 \: is \: equivalent \: with \: option \: 4. \\ B. \: 3(x + 6) = 4 x+ 7 \: is \: equivalent \: with \: option \: 2.\\ C.\: 4x + 3x = 7 - 6 \: is \: equivalent \: with \: option \: 5.[/tex]
Step-by-step explanation:
[tex]all \: you \:need \: to \: do \: is \: to \: identify \: the \\ \: equations \: that \: have \: the \: same \: value \: of \: x. \\ A. \\ \: 3x + 6 = 4 x+ 7 \\ x = 6 - 7 \\ x = - 1. \\ \: so \: 3x + 6 = 4 x+ 7 \: is \: equal \: with \: \: option \: 4.\\ B. \\ 3(x + 6) = 4x + 7 \\ 3x + 18 = 4x + 7 \\ x = 18 - 7 \\ x = 11. \\ \: so \: 3(x + 6) = 4 x+ 7 \: is \: equal \: with \: \: option \: 2. \\ C .\\ 4x + 3x = 7 - 6 \\ 7x = 1 \\ x = \frac{1}{7} \\ so \: 4x + 3x = 7 - 6\: is \: equal \: with \: \: option \: 5. [/tex]