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A day full of math games & activities. Find one near you.
A day full of math games & activities. Find one near you.
A day full of math games & activities. Find one near you.
What is the solution of the system of equations? x + 2y = 7 and x - 2y = -1
Solution:
It is given that,
x + 2y = 7 and x - 2y = - 1
Let us assume,
x + 2y = 7 … [equation 1]
Also assume,
x - 2y = -1 … [equation 2]
Now, we have to add equation 1 and equation 2,
(x + 2y) + (x - 2y) = -1 + 7
x + 2y + x - 2y = 6
By simplification we get,
2x = 6
x = 6/2
x = 3
Substitute the value of x in equation 2 we get,
x - 2y = - 1
3 - 2y = - 1
By transposing,
3 + 1 = 2y
4 = 2y
y = 4/2
y = 2
Therefore, the solution to the system of equations is x = 3, y = 2.
What is the solution of the system of equations? x + 2y = 7 and x - 2y = -1
Summary:
The solution of the system of equations x + 2y = 7 and x - 2y = -1 is x = 3, y = 2.
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