Step-by-step explanation:
3x + 5y = 21 * (-4) •••••• -12x -20y = -84 (a)
4x - 2y = -24 * (3) •••••• 12x -6y = -72 (b)
(a) + (b)
-26y = -156
y = 6
3x + 5 * 6 = 21
3x = 21 - 30
3x = -9
x = -3
Answer:
(5,26)
Step-by-step explanation:
Answer: the answer is A
Step-by-step explanation:
Answer:
Step-by-step explanation:
A={1;-6;1/2}
Answer:
b. infinite solutions
Step-by-step explanation:
Therefore, the graphs are the same.
If the graphs of the equations are the same, then there are an infinite number of solutions that are true for both equations.