Respuesta :
Answer:The number, or
12 is the answer
Step-by-step explanation:3
x
+
4
=
5
x
−
20
3
x
+
4
−
3
x
+
20
=
5
x
−
20
−
3
x
+
20
24
=
2
x
24
2
=
2
x
2
x
=
12
Answer:The number, or
12 is the answer
Step-by-step explanation:3
x
+
4
=
5
x
−
20
3
x
+
4
−
3
x
+
20
=
5
x
−
20
−
3
x
+
20
24
=
2
x
24
2
=
2
x
2
x
=
12