Question

p)12×-144=9×+9
q)18×-220​=3×+5
r)17×-186=3×+10
s)3×-7=2×+5
t)7×+8=4×-10​

me ajudem por favor ​

Answer 1

Explicação passo-a-passo:

p)12x-144=9x+9

12x-9x=9+144

3x=153

x=153/3

x=51

q)18x-220=3x+5

18x-3x=5+220

15x=225

x=225/15

x=15

r)17x-186=3x+10

17x-3x=10+186

14x=196

x=196/14

x=14

s)3x-7=2x+5

3x-2x=5+7

1x= 12

x=12/1

x=12

t)7x+8=4x-10

7x-4x=-10-8

3x=-18

x=-18/3

x=-6