Answer:

Step-by-step explanation:
Equation:1
Equation:2
Solving Equation:1

Subtracting 'y' from both the sides:

Putting 'x' in Equation :2

Adding '4' both the sides

Putting the value of 'y' in equation:1


The solution is:

Answer:
x≥16/5
Step-by-step explanation:
5x-4≥12
5x≥16
x≥16/5
First, you have to multiply 60000 by 3 and you will get 180000. Then you add 4 and your final answer is 180004