Question

b)
121 10 3 4
X X -+-
100 8 15 10
4
(+1)+(
II
3-5
+
+
5 10​

Answer 1

Respuesta:

1

-13x-7

=

3x+233

-13x-3x

=

233+7

-16x

=

240

x

=

240/-16

x

=

-15

Comprobación

-13(-15)-7

=

3(-15)+233

195-7

=

-45+233

188

2

13x+8

=

-14x-343

13x+14x

=

-343-8

27x

=

-351

x

=

-351/27

x

=

-13

Comprobación

13(-13)+8

=

-14(-13)-343

-169+8

=

182-343

-161

=

-161

3

12x+1

=

-15x-404

12x+15x

=

-404-1

27x

=

-405

x

=

-405/27

x

=

-15

Comprobación

12(-15)+1

=

-15(-15)-404

-180+1

=

225-404

-179

=

-179