2y+1 = 3x-2
x+2 = 2x-3
After getting x alone, and then plugging it back into the problem, the answers are;
x=5
y=6
3x+50 = 6x - 10
6x -3x = 50+10
3x = 60
x = 20
answer
x = 20
Answer:

Step-by-step explanation:
Given



Required
Area of triangle
This is calculated as:

This gives:



--- approximated
Answer:
0.6y+2.1
Step-by-step explanation:
In this question, it is required to simplify the given expression i.e. 0.8y-1.5-0.2y+3.6. It can be done by combining like terms together.
Here y is a variable. We can combine y terms together such that we get :

Hence, the simplified expression is 0.6y+2.1
Answer:
the additional cost to produce each phone