IDNLearn.com is your reliable source for expert answers and community insights. Get accurate answers to your questions from our community of experts who are always ready to provide timely and relevant solutions.

Can you explain 3x+4/5=7/10. Solve

Sagot :

[tex]3x+ \frac{4}{5}= \frac{7}{10}\ \ | -\frac{4}{5}\\ \\3x+ \frac{4}{5} -\frac{4}{5}= \frac{7}{10}-\frac{4}{5}\\ \\3x = \frac{7}{10}-\frac{8}{10} \\ \\3x = -\frac{1}{10} \ \ /*\frac{1}{3}\\ \\x=-\frac{1}{30}[/tex]



[tex]or \\ \\ \frac{3x+ 4}{5}= \frac{7}{10} \ \ /*10 \\ \\ 2(3x+4)=7\\ \\6x+8 = 7\ \ |-8[/tex]

[tex]6x+8-8=7-8\\ \\6x=-1\ \ /:6 \\ \\ x=-\frac{1}{6}[/tex]


[tex]3x+ \frac{4}{5}= \frac{7}{10} \\ \\3x= \frac{7}{10}-\frac{4}{5}\\ \\3x=\frac{7}{10}-\frac{8}{10}\\ \\3x=- \frac{1}{10} \ /:3\\ \\x=-\frac{1}{10}\cdot \frac{1}{3}\\ \\x=-\frac{1}{30}[/tex]

-------------------------------------------------

[tex] \frac{3x+4}{5} = \frac{7}{10} \\ \\10(3x+4)=5\cdot 7\\ \\30x+40=35\\ \\30x=35-40\\ \\30x=-5\ /:30\\ \\x=- \frac{5}{30} \\ \\x=-\frac{1}{6}[/tex]