Question

resolva as equações

(A) x-5= 15

(B) x+3= 10

(C) 2×=-8

(D) x= 6
2

(E) 5×-4=8+2×

Answer 1

A) x-5= 15

x= 15 + 5

x= 20

(B) x+3= 10

x= 10 - 3

x= 7

(C) 2×=-8

x= - 8/2

x= - 4

(D) x/2= 6

x= 6 • 2

x= 12

(E) 5×-4=8+2×

5x - 2x = 8 + 4

3x = 12

x= 12/3

x= 4