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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? y = 4x + 4 and y = -3x - 3
Solution:
Given: System of linear equations is y = 4x + 4 and y = -3x - 3
Let y = 4x + 4 --- (a)
and y = -3x - 3 --- (b)
Let us use the elimination method to solve them.
Subtract (b) from (a)
y = 4x + 4
y = -3x - 3
--------------
0 = 4x - (-3x) + 4 - (-3)
0 = 4x + 3x + 4 +3
0 = 7x + 7
7x = -7
⇒ x = -1
Put x = -1 in eq(a), we get y = 4(-1) + 4
y = -4 +4
⇒ y = 0
The solution set for given equations is (-1, 0)
What is the solution of the system of equations? y = 4x + 4 and y = -3x - 3
Summary:
The solution of the system of equations y = 4x + 4 and y = -3x - 3 is (-1, 0).
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