6.2*(3-2x)=20-(12+x+1.4)
18.6 – 12.4x = 20 – 12 – x – 1.4
– 12,4x + x = – 1,4 – 12 + 20 – 18,6
-11.4x = -12
-114x = -120
-19x = -20
x = -20/-19
х=1,05263157895
6.2*(3-2x)=20-(12+x+1.4)
18.6 – 12.4x = 20 – 12 – x – 1.4
– 12,4x + x = – 1,4 – 12 + 20 – 18,6
-11.4x = -12
-114x = -120
-19x = -20
x = -20/-19
х=1,05263157895