Question

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

Answer 1

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