Question

urgentee
resolva as equações:
2x + 3 =15

4x + 2 = -18
7x- 1 = 13
hx + 101 = 300

Answer 1

2x + 3 = 15

2x = 15 - 3

x = 12 / 2

x 6

4x + 2 = -18

4x = - 18 - 2

x = -20 / 4

x = -5

7x - 1 = 13

7x = 13 + 1

x = 14 / 7

x = 2

hx + 101 = 300

hx = 300 - 101

x = 199 / h