Question

Equacao com 1 grau com uma incognita

J- 10×-137=9×-37

K- 5×-2×=2×+33

L- 6×-340=4×+120

M- 10×-81=×+9

N- ×+7=-3×+28

O- 2×-10=-3+40

Answer 1

J-

10x-9x=-37+137

x=100

K-

5x-2x-2x=33

x= 33

L-

6x-4x=120+340

2x= 460

x= 460/2

x=230

M-

10x-x=9+81

9x= 90

x=90/9

x=10

N-

x+3x=28-7

4x= 21

x=21/4

x= 5,25

O-

2x=-3+40+10

2x= 47

x=47/2

x=23,5