Question

resolva as equações

2-3x=9-4×
350x-500=100x+750
x+5,41=3,87
3(2x-1)=-2(x+3)

por favor é urgente!!!!!!

Answer 1

2-3x= 9-4x
= -3x+4x= 9-2
X = 7

350x - 500= 100x + 750
=350x - 100x = 750 + 500
=250x= 1250
X= 1250÷250 X=5

3 (2x-1) = -2 (x+3)
=6x-3 = -2x-6
=6x+2x = -6+3
=8x = -3 ----- X= -3/8 ou X= -3,75

Answer 2

Olá, boa tarde☺

Resoluções:

a)

2-3x=9-4x

-3x+4x=9-2

x=7

b)

350x-500=100x+750

350x-100x=750+500

250x=1250

x=1250/250

x=5

c)

x+5,41=3,87

x=3,87 - 5,41

x = -1,54

d)

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

6x - 3 = -2x - 6

6x + 2x = -6 + 3

8x = - 3

x=-3/8

Bons Estudos :)