Question

Resolva as equações.

A - 3 + 5y = 1 - 2 (1+y)

B - 20 + 5 (1 - x) = 2x - 3 (x-2)

Answer 1

A- 3 + 5y = 1 -2 -y
5y + y= -1 -3
6y= -4
y= -4/6



B- 20 +5 -5x= 2x -3x +6
-5x -2x +3x= -20 -5 +6
-7x +3x = -25 +6
-4x = -19
x= +19/4

Answer 2

A_ -3+5y=1-2(1+y)
-3+5y=1-2+2y
5y-2y=1-2+3
3y=2
y=2/3

B_-20+5(1-x)=2x-3(x-2)
-20+5-5x=2x-3x-6
-5x-2x+3x=-6-5+20
-4x=9
x=9/-4