Respuesta :
Answer:
20
Step-by-step explanation:
First solve the first equation:
5x-6=10
+6 +6
5x/5=16/5
x=3.2
Then apply the value of x to the current equation:
10 *3.2-12
=20
Answer:
20
Step-by-step explanation:
5x-6=10
-6+6 10+6
5x=16
5/5 16/5
x=3.2
10(3.2)-12
32-12
20