Question

Urgente ecuaciones fáciles

Answer 1

A)
2((x+5)=16
2x+10=16
2x=16-10
2x=6
x=6÷2
x = 3

b)
5=3(1-2x)
5=3-6x
6x=3-5
6x=-2
x= -2/6 = -1/3

c)
5(x-1)=3x-4
5x-5=3x-4
5x-3x=-4+5
2x=1
x = 1/2

d)
5x-3=3-2(x-4)
5x-3=3-2x-8
5x+2x=3-8+3
7x=-2
x = -2/7

e)
10x-(4x-1)=5(x-1)+7
10x-4x+1=5x-5+7
10x-4x-5x=-5+7-1
x = 1

f)
6(x-2)-x=5(x-1)
6x-12-x=5x-5
6x-x-5x = -5+12
0x = 7 No es posible

g)
7(x-1)-4x-4(x-2)=2
7x-7-4x-4x+8=2
7x-4x-4x=2-8+7
-x=1
x = -1

h)
3(3x-2)-7x=6(2x-1)-10x
9x-6-7x=12x-6-10x
9x-7x-12x+10x=-6+6
0x = 0 No es posible

i)
4x+2(x+3)=2(x+2)
4x+2x+6=2x+4
4x+2x-2x=4-6
4x=-2
x = -2/4 = -1/2