Question

-4(5-4x)=x+1
-4(-7+6x)=9x-5

Answer 1

$-4(5-4x)=x+1\\-20+16x=x+1\\16x-x=20+1\\15x=21\\x=\frac{21}{15}=\frac{7}{5}=\frac{14}{10}=1,4\\\\\\-4(-7+6x)=9x-5\\28-24x=9x-5\\28+5=9x+24x\\33=33x\\x=1$