Question

repede va rog

A)2x+1/3=-0,6
b)3x+0,5=-0,5
c)1intreg si 2/7-x=-5/14=
d)5x+3(x-6)=7x+13
e)4(x+5)-3(x-3)=2(x+15)=
f)6x+4(x-8)=9x+21=
g)5(x+2)-4(x-2)=3(x+8)=

Answer 1

$a) \frac{2x+1}{3} =-0,6\\2x+1=-1,8\\2x=-2,8\\x=-1,4= -\frac{7}{5} \\b)3x+0,5=-0,5\\3x=-1\\x=- \frac{1}{3} \\c)1 \frac{2}{7} -x=- \frac{5}{14} \\ \frac{9}{7} -x=- \frac{5}{14} \\x= \frac{9}{7} + \frac{5}{14} \\x= \frac{23}{14} \\d)5x+3(x-6)=7x+13\\5x+3x-18=7x+13\\8x-7x=13+18\\x=31\\e)4(x+5)-3(x-3)=2(x+15)\\4x+20-3x+9=2x+30\\x-2x=30-29\\x=-1\\f)6x+4(x-8)=9x+21\\6x+4x-32=9x+21\\10x+9x=21+32\\x=53\\g)5(x+2)-4(x-2)=3(x+8)\\5x+10-4x+8=3x+24\\x-3x=24-18\\-2x=6\\x=-3$