Question

True or False:

(1, 2) is a solution to the following system of equations:
5x +y=7
7x – 2y = 3
A) True
B) False

Answer 1

Hi there!

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I believe your answer is:

A) True

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Here’s why:

• I have used a graphing program to graph the lines given.
• When they are graphed, the lines intercept at the point (1,2). This means that it is a solution to the system, and the given statement is true.
• See the graph attached.

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Hope this helps you. I apologize if it’s incorrect.

Answer 2

Explanation:

LHS = 5x+y =5(1)+2= 5+2= 7

RHS = 7

since LHS= RHS

LHS = 7x-2y =7(1)-2(2)=7-4=3

RHS = 3

since LHS=RHS

(1, 2) is a solution to the following system of equations.

True