Question

resolva as equações do 1 grau abaixo:
a)2x+1/4 - 3(3-x)/2 =56+x/16

b)x/4+3x-2/2=x-3/2

c)x-1 /2+x-3/3=6

Me ajudem!

Answer 1

Letra "A"
2x+1/4 - 3(3 - x)/2=56 + x/16
Observa que os denominadores são (4,2,16)
Termos que tirá o m,m,c entre entre eles.
16,4,2/2
8,2,1/2
4,1,1/2
2,1,1/2
1,1,1

Então :2*2*2*2=16
4*(2x+1)-8(9-3x)=56+x/16
8x-4-72+24x=56+x
24x+8x-x=56+72-24
32x-x=56+68
31x=124
x=124/3
x=4..


Letra" B"

x/4+3x-2/2=x-3/2
m,m,c=(4,2,2)
4,2,2/2
2,1,1/2
1,1,1
Pois 2*2=4
x/4+3x-2/2=x+3/2
x+6x-4=2x-6
7x-4=2x-6
5x=-2
x=-2/5

Letra "C"
x-1/2+x-3/3=6
m,m,c=(3,2)
3,2/2
3,1/3
1,1
3x-3+2x-6=36
5x-9=36
5x=45
x=45/5
x=9./

S(4,-2/5,9)...