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 é pra amanhã ​

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

x=12

t)7x+8=4x-10

7x-4x= -10-8

3x= -18

x= -18/3

x= -6

Answer 2

Resposta:

p)12x - 144 = 9x + 9

12x - 9x = 9 + 144

3x = 153

153

X = ------- => x= 51

3

q)18x -- 220 = 3x +5

18 X -- 3 x = 220 + 5

15 X = 225

x= 225

-------- => x = 15

15

s) 3x -- 7 = 2x + 10

3x -- 2x = 10 + 7

x=17

T) 7X + 8= 4X -- 10

7X -- 4X = -- 10 -- 8

3 X = -- 18

X = -- 18

------- => X= - 3

6

R ) 17X -- 186 = 3X + 10

17X -- 3X = 186 + 10

14X = 196

X = 196

--------- => X= 14

14