Question

15) Hallar el valor de la incógnita: a) -4+x =12, b) 3.x=9, c) x -15=0, d) -2+x-(-3)= 7+2.3, e) 4.x + (-7) =5. doy corona​

Answer 1

-4 + x = 12

x = 12 + 4

x = 16

3x = 9

x = 9/3

x  = 3

x - 15=0

x = 15

-2 - x - (-3) = 7 + 2.3

-2 - x + 3 = 7 + 6

+1 - x = 13

+1 - 13 = x

-12 = x

4.x + (-7) = 5

4x - 7 = 5

4x = 7 + 5

4x = 12

x = 12/4

x  = 3

Eternamente axllxa