Question

Resolver las siguientes ecuaciones
A 5x+2=x+10
B 1+3 x= 2x+7
C 2+7x=4-3
D x-18=2x-3
E -5 -2x=3-8x-2

Answer 1

a)
$5x + 2 = x + 10 \\ 5x - x = + 10 - 2 \\ 4x = + 8 \\ x = 8 \div 4 \\ x = 2$

b)

$1 + 3x = 2x + 7 \\ + 3x - 2x = + 7 - 1 \\ 1x = + 6 \\ x = 6 \div 1 \\ x = 6$

c)

$2 + 7x = 4 - 3 \\ + 7x = 4 - 3 - 2 \\ + 7x = - 1 \\ x = - \frac{1}{7}$

d)

$x - 18 = 2x - 3 \\ x - 2x = - 3 + 18 \\ - 1x = + 15 \\ x = + 15 \div ( - 1) \\ x = - 15$

e)

$- 5 - 2x = 3 - 8x - 2 \\ - 2x + 8x = 3 - 2 + 5 \\ 6x = 6 \\ x = 6 \div 6 \\ x = 1$



espero haberte ayudado