Explicación paso a paso:
a. 3x = 8x - 5
3x - 8x = - 5
-5x = -5x
x = 1
b. 3x + 1 = x + 7
3x - x = 7 - 1
2x = 6
x = 3
c. 8(x + 2) = 1 + 3x
8x + 16 = 1 + 3x
8x - 3x = 1 - 16
5x = - 15
x = -3
d. -2(3x + 2) = 5(x - 4)
- 6x - 4 = 5x - 20
- 6x - 5x = - 20 + 4
- 11x = -16
x = 16/11
e. 2x + 3 = 4x
2x - 4x = -3
-2x = -3
x = 3/2
f. 2(2x + 1) = 30
2x + 1 = 15
2x = 15 - 1
2x = 14
x = 7
g. 20 = 4(x + 2)
5 = x + 2
- x = 2 - 5
- x = - 3
h. 8(x + 2) = 1 + 3x
5x = -15
i. 4(x + 1) = -3(x + 5)
4x + 3x = - 15 - 4
7x = - 19
x = - 19/7
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Explicación paso a paso:
a. 3x = 8x - 5
3x - 8x = - 5
-5x = -5x
x = 1
b. 3x + 1 = x + 7
3x - x = 7 - 1
2x = 6
x = 3
c. 8(x + 2) = 1 + 3x
8x + 16 = 1 + 3x
8x - 3x = 1 - 16
5x = - 15
x = -3
d. -2(3x + 2) = 5(x - 4)
- 6x - 4 = 5x - 20
- 6x - 5x = - 20 + 4
- 11x = -16
x = 16/11
e. 2x + 3 = 4x
2x - 4x = -3
-2x = -3
x = 3/2
f. 2(2x + 1) = 30
2x + 1 = 15
2x = 15 - 1
2x = 14
x = 7
g. 20 = 4(x + 2)
5 = x + 2
- x = 2 - 5
- x = - 3
x = 3
h. 8(x + 2) = 1 + 3x
8x + 16 = 1 + 3x
8x - 3x = 1 - 16
5x = -15
x = -3
i. 4(x + 1) = -3(x + 5)
4x + 3x = - 15 - 4
7x = - 19
x = - 19/7