Question

ejemplos de ecuaciones

Answer 1

1)x+10=25

x=25-10

x=15

2)x+x-80=70

2x=70+80

2x=150

x=150/2

x=75

3)x+5*2=40

x+10=40

x=40-10

x=30

Answer 2

*  3x + 1 = 2x + 3

* 4x - 9 = 2x + 3 

* 4a + 6ab - c = 2ba - 3

* 4a - 12 = 9a : 2

* 98 × 5 - 12 = 8 : 2

* 12a + 12a = ( 2a - 1a × 2a + 8a ) - 12

* -6 : 2 ( 12 - - 7 ) = 15 + 8 × 4