Question

Ecuaciones lineales y despeje de incógnitas.

Answer 1

2(x-10) = -6(2-x)-6X
2x-20 = -12+6x-6x
2x-6x+6x= -12+20
2x= 8
x= 8/2
x= 4

2(x+1)-3(x-2)=2x+6
2x+2-3x+6 = 2x+6
2x-3x-2x= 6-2-6
-3x= -2
x= 2/3

50-7x=6x-6
-7x-6x= -6-50
-13x= -56
x= 56/13

4x+4+9x+18= 12(x+2)
4x+4+9x+18= 12x+24
4x+9x-12x= 24-4-18
x= 2

3x-2 =4+x
3x-x= 4+2
2x= 6
x= 6/2
x= 3

x= 9+4x-3
x-4x= 9-3
-3x= 6
x= -6/3
x= -2

7(x-3)= 5(x-2)
7x-21 = 5x-10
7x-5x= -10+21
2x= 11
x= 11/2