What is it that you want to "do" to it ?
Would you like to know what value for 'y' makes it true ?
Here's how you find that number:
4y + 1 = 13
Subtract 1 from each side:
4y = 12
Divide each side by 4:
y = 12/4 = 3
Whenever [ y = 3 ], then [ 4y plus 1 ] actually is 13.
-4x + 4y = 1
x equals -3, and y equals 1.
No.
x=4y+1 x=4y-1 No,they have different solutions.
(1, 1)
No.
(-1, 5)
(-1, 5)
(2, -1)
76
0
4