bài 1 gải phương trình

a 7x -5=13-5x

b 5(2x-3)-4(5x-7)=19-2(x+11)

c\(\frac{2x-1}{3}\)- \(\frac{5x+2}{7}\)= x+13

d \(\frac{2x-3}{3}\)-\(\frac{x-3}{6}\)=\(\frac{4}{\left(x+1\right)\left(x+3\right)}\)=1

e \(\frac{2}{x+1}\)-\(\frac{1}{x-2}\)=\(\frac{3x-11}{\left(x+1\right)\left(x+2\right)}\)

f \(\frac{3x-1}{x-1}-\frac{x-3}{6}=\frac{4x+3}{5}-17\)