1)20x-13х-12х=6 2)-2(х-5)+3(х-4)=4х+1 3)3(5х-7)=5(3х+4)

Question

1)20x-13х-12х=6
2)-2(х-5)+3(х-4)=4х+1
3)3(5х-7)=5(3х+4)

Answer 1

1)20x-13x-12x+6
20x-25x-6
-5x=6
x=6÷-5
x=-1.2
2) -2(х-5)+3(х-4)=4х+1
-2x+10+3x-12=4x+1
-2x-4x+3x=-10+12+1
-3x=3
x=-1