Question

sum of two numbers is 120 to the greater number is 2 more than twice the smaller number from two linear equations in two variables X and Y​

Answer 1

Answer:

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Step-by-step explanation:

Let  X  be the bigger number and let  Y  be the smaller number.

X + Y = 120

X = 2Y + 2

Once you see those, it's quite clear that this is a simple substitution problem. So, let's solve for Y first:

2Y + 2 + Y = 120

And then let's substitute it in for the first number:

3Y + 2 = 120

3Y = 120 - 2

3Y = 118

Y = 118 / 3

Y = 39.33

And then to solve for  X:

X + 39.33 = 120

X = 120 - 39.33

X = 80.67

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