Question

a)2x+3x+9=48-8x

b)3x-2-2x-3=0

c)4x-4-5x=-6+90

resolva a equação de 1°grau ​

Answer 1

a)

$2x + 3x + 9 = 48 - 8x \\ 2x + 3x + 8x = 48 - 9 \\ 13x = 39 \\ x = \frac{39}{13} \\ x= 3$

b)

$3x - 2 - 2x - 3 = 0 \\ 3x - 2x = 0 + 2 + 3 \\ x = 5$

c)

[tex]4x- 4 - 5x = - 6 + 90 \\ 4x - 5x =- 6 + 90 + 4 \\ x = - 6 + 94 \\ -x = -88.(-1)\\ x= -88