Question

ES URGENTE POR FAVOR!!
Resuelve las siguientes ecuaciones de 1er grado: a) 4X + 6 – 2X = X + 19 b) 30 + 21X – 6 = 3X – 10 + 8X c) - 9X + 7 – 20 = 10X + 6 d) 5X + 6X – 23 = 100 + X e) 8X + 8 – X = 5X + 27 + 1 f) 36 + 2X – 6X = 3 + 8X g) - 11X + 45 – 2 = -12X + 9 h) 7X + 4X – 20 = 70 + 3X i) 2 + 6X + 7 – 2X = 3X + 65 j) 49 + 22X = - 3X + 99

Answer 1

a) 4X + 6 – 2X = X + 19
4 X -2X - X = 19-6
X = 13

b) 30 + 21X – 6 = 3X – 10 + 8X
21 X -3X -8X = -10 -30 +6
10 X = -34
X= -34/10
X= -17/5

c) - 9X + 7 – 20 = 10X + 6
-9 X -10X = 6-7+20
-19X = 19
X=-19/19
X=-1

d) 5X + 6X – 23 = 100 + X
5X +6X - X = 100+23
10X = 123
X=123/10

e) 8X + 8 – X = 5X + 27 + 1
8X - X - 5X = 27+1-8
2X = 20
X=20/2
X=10

f) 36 + 2X – 6X = 3 + 8X
2X -6X-8X = 3-36
-12X = -33
X=33/12
X= 11/4

g) - 11X + 45 – 2 = -12X + 9
-11X +12 X = 9-45+2
X = -34

h) 7X + 4X – 20 = 70 + 3X
7X +4 X -3X = 70+20
8X = 90
X=90/8
X= 45/4

i) 2 + 6X + 7 – 2X = 3X + 65
6X -2X -3X = 65-2 -7
X=. 56

j) 49 + 22X = - 3X + 99
22X +3X = 99-49
25X = 50
X=50/25
X=2