Question

Porfavor es para mañana

Answer 1

A) 3 + 1 = 4
b) 3(-1)^3 -2(-1)^2-5(-1)+1 = 1
c) A+B = 4+1=5
36.-
a) 3x + 4 = 7
3x= 7-4
3x=3
x=3/3
x=1
b) 2(x-2)+5=3x+2
2x-4+5=3x+2
2x+1=3x+2
1-2=3x-2x
-1=x
c) 2(x+3) - (3x+3)=2x-1
2x+6 - 3x-3=2x-1
3-x=2x-1
3+1=2x+x
4/3= x
d) 4x+1=3(x-1)+6
4x+1=3x-3+6
4x-3x= 3-1
x=2
e) 6-(8x+1)=2x-3(2-3x)
6-8x-1 =2x-6+9x
5-8x=11x-6
5+6=11x+8x
11=19x
11/19=x
f) x/3=x - 1/3
x/3= (3x-1)/3
x = 3x-1
1= 3x-x
1=2x
1/2=x
g) (4x+3)/12=3x
4x+3=36x
3=36x-4x
3=32x
3/32=x
h) 2x/5-3x= 1/2
(2x-15x)/5= 1/2
4x-30x=5
-5/26=x
i) 5/3=2x -2/3
5/3= (6x-2)/3
5=6x-2
7/6=x
37) a) (×-1)/2 - (x+1)/3=(3x-5)/6 - 2 (3x-3 -2x-2)/6= (3x-5-12)/6 x-5=3x-17 -5+17=3x-x 12/2=x 6=x b) (2(x+1))/4 - (3(2x-3))/3 = 5-2x (x+1)/2 - (2x-3) = 5-2x x+1-4x+6=5-2x 7-3x=5-2x 7-5=3x-2x 2=x