1) 8(0,7x-4)-2(0,2x-3)=-39
5,6x-32-0,4x+6=-39
5,2x=-13
x=2,5
2) 41,4(14/23x+5/9)-79,8(8/19x-5/6)=76,9
207/5(14/23x+5/9)-399/5(8/19x-5/6)=769/10
126/5x+23-168/5x +133/2=769/10
126/5x+179/2-168/5x=769/10 | * 10
252x+895-336x=769
-84x=769-895
x=3/2=1,5
1) 8(0,7x-4)-2(0,2x-3)=-39
5,6x-32-0,4x+6=-39
5,2x=-13
x=2,5
2) 41,4(14/23x+5/9)-79,8(8/19x-5/6)=76,9
207/5(14/23x+5/9)-399/5(8/19x-5/6)=769/10
126/5x+23-168/5x +133/2=769/10
126/5x+179/2-168/5x=769/10 | * 10
252x+895-336x=769
-84x=769-895
x=3/2=1,5