Question

resolva as equações: (se puder com as contas) A)16x-1=12x+3 B)3X-2=4X+9 C)5X-3+X=2X+9 D)17X-7X=X+18 C)X+X-4=17-2X+1 D)X+2X+3-5X=4X-9 E)5X+6X-16=3X+2X-4 F)5X+4=3X-2X+4 G)10-9X+2X=2-3X H)4X-4-5X=-6+90 I)2-3X=-2X+12-3X . URGENTEE PFV ME AJUDEM

Answer 1

a) 16x - 1 = 12x + 3 b) 3x - 2 = 4x + 9
16x - 12x = 3 + 1 3x - 4x = 9 + 2
4x = 4 -1x = 11 (×1)
x = 4 ÷ 4 1x = - 11
x = 1 x = - 11 ÷ 1
x = - 11

c) 5x - 3 + x = 2x + 9 d) 17x - 7x = x + 18
5x + x - 2x = 9 + 3 17x - 7x - x = 18
4x = 12 9x = 18
x = 12 ÷ 4 x = 18 ÷ 9
x = 3 x = 2

c) x + x - 4 = 17 - 2x + 1 d)x+2x+3-5x= 4x - 9
2x + 2x = 17 + 1 + 4 3x -5x - 4x = - 9 - 3
4x = 22 -6x = -12 (×1)
x = 22 ÷ 4 x= 12 ÷ 6
?????? x = 2

Answer 2

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a) 16x - 1 = 12x + 3 b) 3x - 2 = 4x + 9

16x - 12x = 3 + 1 3x - 4x = 9 + 2

4x = 4 -1x = 11 (×1)

x = 4 ÷ 4 1x = - 11

x = 1 x = - 11 ÷ 1

x = - 11

c) 5x - 3 + x = 2x + 9 d) 17x - 7x = x + 18

5x + x - 2x = 9 + 3 17x - 7x - x = 18

4x = 12 9x = 18

x = 12 ÷ 4 x = 18 ÷ 9

x = 3 x = 2

c) x + x - 4 = 17 - 2x + 1 d)x+2x+3-5x= 4x - 9

2x + 2x = 17 + 1 + 4 3x -5x - 4x = - 9 - 3

4x = 22 -6x = -12 (×1)

x = 22 ÷ 4 x= 12 ÷ 6

?????? x = 2