Solving the first equation:(х-12)(3-х)=0Expand the equation:3x - 12x - 36 = 0-9x - 36 = 0-9x = 36x = -4
Solving the second equation:-0.8(x-1.5) = 6.4-0.8x + 1.2 = 6.4-0.8x = 5.2x = -6.5
Solving the third equation:|x - (0.8 + x)| = 8|x - 0.8 - x| = 8|-0.8| = 80.8 ≠ 8No solution.
Solving the first equation:
(х-12)(3-х)=0
Expand the equation:
3x - 12x - 36 = 0
-9x - 36 = 0
-9x = 36
x = -4
Solving the second equation:
-0.8(x-1.5) = 6.4
-0.8x + 1.2 = 6.4
-0.8x = 5.2
x = -6.5
Solving the third equation:
|x - (0.8 + x)| = 8
|x - 0.8 - x| = 8
|-0.8| = 8
0.8 ≠ 8
No solution.