Question

01) RESOLVA AS SEGUINTES EQUAÇÕES DO 1º GRAU. a) +2. (+ x+3) = - 3.( +x+3)= b) +5.( +x+1)+6.( +x+2)= +3.( +x+3)= c) +4.( +3x-1) -2.( +4x+6) =+4 d) +3. ( +2x+7) +2x - 11= +16 e) +4x -10 = +2x+2=

Answer 1

Resposta:

Explicação passo-a-passo:

A) 2(x+3) = -3(x+3)

2x+6 = -3x-9

2x+3x = -9-6

5x = -15

x = 15/5 = 3

B) 5(x+1) + 6(x+2) = 3(x+3)

5x+5+6x+12 = 3x+9

5x+6x-3x = 9-5-12

8x = -8

x = -8/8 = -1

C) 4(3x-1) -2(4x+6) = 4

12x-4-8x-12 = 4

12x-8x = 4+4+12

4x = 20

x = 20/4 =  5

D) 3(2x+7)+2x-11 = 16

6x+21+2x-11= 16

6x+2x = 16-21+11

8x = 6

x = 6/8 = 3/4

E) 4x-10 = 2x+2

4x-2x = 2+10

2x = 12

x = 12/2 = 6