Question

qual resultado da equações 2×-4=3 e 4×+2=-18 e 5×-2=7+6

Answer 1

2x=3+4
x=7/2

4x+2=18
4x=18-2
x=16/4
x=4

5x-2=7+6
5x=13+2
x=15/5
x=5

Answer 2

2x-4=3
2x=3+4
2x=7
x=7/2
4x+2=-18
4x=-18-2
4x=-20
x=-20/4
x=-5
5x-2=7+6
5x=7+6+2
5x=13+2
5x=15
x=15/5
x=3