Question

Resolva as equaçoes do 1 grau

A) Y-8+5y= -3+2y+7
B) x\2=12\3
C)4t+9=3t+5
D) -10+4-2x= -4x-7
E) 1OX-8-2=7X-4

Answer 1

A) y-5y-2y= -3+7-8
-2y= -12 x(-1)
2y= 12
y= 12/2
y= 6

B) x/2= 4
x= 4.2
x=8

C) 4t-3t= 5-9
t= -4

D) -2x+4x= -7+10-4
2x= -1
x= -1/2
x= -0,5

E) 10x-7x= -4+8+2
3x= 6
x= 6/3
x= 2