Respuesta :
Answer: One Solution
Step by step explanation:
0.75(x + 40) = 0.35(x + 20) + 0.35(x + 20)
Multiply by 100
75(x + 40) = 35(x + 20) + 35(x + 20)
Combine the right hand side
75(x + 40) = 70(x+20)
Expand the parentheses
75x+3000=70x+1400
Group similar terms
75x-70x=1400-3000
5x=-1600
Divide both sides by 5
x-320
Only one solution
Step by step explanation:
0.75(x + 40) = 0.35(x + 20) + 0.35(x + 20)
Multiply by 100
75(x + 40) = 35(x + 20) + 35(x + 20)
Combine the right hand side
75(x + 40) = 70(x+20)
Expand the parentheses
75x+3000=70x+1400
Group similar terms
75x-70x=1400-3000
5x=-1600
Divide both sides by 5
x-320
Only one solution
The number of the solution of the equation is one. And the solution of the equation will be –320.
What is the solution of the equation?
The solution of the equation means the value of the unknown or variable.
The equation is given below.
0.75(x + 40) = 0.35(x + 20) + 0.35(x + 20)
Simplify the equation, we have
0.75x + 30 = 0.35x + 7 + 0.35x + 7
0.75x – 0.70x = –30 + 14
0.05x = –16
x = –320
The number of the solution of the equation is one. And the solution of the equation will be –320.
More about the solution of the equation link is given below.
https://brainly.com/question/545403
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