Question

2-10x+4=-96                  -5x-19+19=65                5-8x-58=-10             facetile in ecuatii la multimea z

Answer 1

2-10x+4=-966-10x=-96
-10x=-96-6
-10x=-102
x=102/10
x=10,2  nu e solutie in Z

-5x-19+19=65 -5x=65
x=-65/5
x=-13


5-8x-58=-10
-53-8x=-10

-8x=-10+53

-8x=43
x=-43/8
x=-5,375 nu e solutie in z

Answer 2

2-10x+4=-96
-10x=-96-4-2
-10x=-102
x=102/10=10.2

-5x-19+19=65
-5x=65
x=-13

5-8x-58=-10
-8x-58=-15
-8x=58-15
-8x=43
x=43/(-8)