Question

Me da a resposta dessa conta aqui pfvvv
A) 2.(3-x)+4x=26
B)3x+4-3.(2-x)=12+2x
C)x-x+25=10x-5x
D)2x-3x+7.(x+2)=14

Answer 1

a)2.(3-x)+4x=26
6-2x+4x=26
-2x+4x=26-6
-2x=20(-1)
2x=-20
x=-20/2
x=-10
b)3x+4-3(2-x)=12+2x
3x+4-6-3x=12+2x
3x-3x-2x=12-4+6
-2x=14(-1)
2x=-14
x=-14/2
x=-7
c)x-x+25=10x-5x
x-x-10x+5x=-25
-5x=-25(-1)
5x=25
x=25/5
x=5
d)2x-3x+7.(x+2)=14
2x-3x+7x+14=14
2x-3x+7x=14-14
6x=0
x=0/6
x=0