Question

7m + 4 = 3m - 8 cuanto es​

Answer 1

Respuesta:

7m+4 = 3m-8

7m-3m+4 = 3m-3m-8

4m+4 = -8 ; 4m+4 = 4(m+1) y -8 = 4(-2)

4(m+1) = 4(-2)

4(m+1)/4 = 4(-2)/4

m+1 = -2

m+1-1 = -2-1

m = -3

Verificación :

7(-3)+4 = 3(-3)-8

-21+4 = -9-8

-17 = -17

R// El valor de " m " en la ecuación " 7m+4 = 3m-8 " es -3 .

Answer 2

7m+4=3m–8

7m+4-3m= –8

7m-3m= –8–4

4m= –8–4

4m=–12

m= –3

Espero te ayude