Question

Como resolvo essas equações
a) x-1 = 7 - 2X
b) X+ 1 +2x = 1-3x
c) 5+ 3y = -1 + -4y
d) -15 - 11X = -9 - 3X
e) 1 - 2y = 7y + 8
f) 1045 - X = 729-3x

Answer 1

a) x+2x=7+1
3x=8

b) x+2x+3x=-1+1
6x

c)3y+4y=-1-5
7y=-6

d)-11x+3x=-9+15
-8x=-6

e)-2y-7y=8-1
-9y=7

f)-x+3x=729-1045
2x= -316

Answer 2

A) X-1 = 7-2X
X+2X = 7+1
3X = 8
X = 8/3
S = {8/3}

B) X+1+2X = 1-3X
X+2X+3X = 1 -1
6X = 0
X = 0
S = {0}
C) VOU FICAR DEVENDO ESSA :/

D) -15-11X = -9-3X
-11X+3X = -9+15
-8X = 6
X = 6/8
S = {6/8}

E) 1-2Y = 7Y+8
-2Y-7Y = 8-1
-9Y = 7
Y = 7/9
S = {7/9}

F) 1045-X = 729-3X
-X+3X = 729 -1045
2X = -316
X = -316/2
X = -158
S = {-158}