Log4 64=y
64=4y
26=22y
Therefore y=3
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-8x-8y=-64 -8y=8x-64 y=-x+8
x = 2 so x squared = 4 and 2x squared = 2 times 4 = 8; y = 4 so xy = 2 times 4 = 8 and 3xy = 3 times 8 = 24; y squared = 4 times 4 = 16 and 4y squared = 4 times 16 = 64; so 8 + 24 - 64 = 32 - 64 = -32
You already know the value of x is 4. To solve the value of y = 64x, mutlply 64 x 4. Hence, y = 64*4 = 256.
y = 12. It's the transitive property. y = 12 = 3x.
Evaluate x/y when x = 4 and y = 4. x/y = 4/4 = 1/1 = 1