Question

Resolva as equações abaixo:
a) 10x +16 = 14x +8
b) 2(x -3) = -3(x - 3)
c)4(5x -3) -64(3 -x) - 3 (12x -4) =96
d)5 (x +1) + 6 (x +2) = 9 (x + 3)​

Answer 1

>>>>>>Olá!!<<<<<<<

Resolução passo-a-passo:

a)

10x+16 = 14x+8

10x—14x=8—16

—4x = —8

x = —8/—4 = 2

x = 2

B)

2(x—3)=—3(x—3)

2x—6 = —3x+9

2x+3x = 9+6

5x = 15

x = 15/5

x = 3

C)

4(5x—3)—64(3—x)—3(12x—4)=96

20x—12—192+64x—36x+12=96

20x+64x—36x=96+12+192—12

84x—36x=108+180

48x=288

x = 288/48

x = 6

D)

5(x+1)+6(x+2)=9(x+3)

5x+5+6x+12=9x+27

11x—9x=27—17

2x=10

x = 10/2

x = 5

Dúvidas??Comente!!