3(5-x)+13=4(3x-8)
15 – 3x + 13 = 12x – 32
– 3x – 12x = – 32 – 13 – 15
-15x = -60
x = 4
0.7(6y-5)=0.4(y-3)-1.16
4.2y – 3.5 = 0.4y – 1.2 – 1.16
4,2y – 0,4y = – 1,16 – 1,2 + 3,5
3.8y = 1.14
y = 0.3
3(5-x)+13=4(3x-8)
15 – 3x + 13 = 12x – 32
– 3x – 12x = – 32 – 13 – 15
-15x = -60
x = 4
0.7(6y-5)=0.4(y-3)-1.16
4.2y – 3.5 = 0.4y – 1.2 – 1.16
4,2y – 0,4y = – 1,16 – 1,2 + 3,5
3.8y = 1.14
y = 0.3