Question

Equação de 1 grau,Pfv gente!!!

a)2(2x+7)+3 (3x-5)=3(4x-5)-1
B)3(x+2)=2(x-7)
C)4(2x-1)=3(x+2)
D)4(2m-1)+3m=2(4m-1)-(2-m)
E)3(x+2)-1=2

Answer 1

A)2(2x+7)+3 (3x-5)=3(4x-5)-1

4x+14+9x-15=12x-15-1

13x-1=12x-15-1

13x-12x=-15-1+1

x=-15

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

3x+6=2x-14

3x-2x=-14-6

x=-20

C)4(2x-1)=3(x+2)

8x-4=3x+6

8x-3x=6+4

5x=10

x=10/5=2

D)4(2m-1)+3m=2(4m-1)-(2-m)

8m-4+3m=8m-2-2+m

11m-4=9m-4

11m-9m=4-4

2m=0

m=0/2=0

E)3(x+2)-1=2

3x+6-1=2

3x+5=2

3x=2-5

x=-3/3=-1