3x - 5 = 48
So 3x = 53
and x = 53/3 = 17.66...
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6X-3 = -51 add 3 to both sides 6X = -48 divide by 6 X = -8
3x+5y=48 5y=48-3x-3x+5y=12 -3x+(48-3x)=12-6x=-36x=65y=48-3(6)5y=30y=6(6,6)
c = 4, c squared = 16, 3c squared = 48, 48 + 9 = 57.
48
This equation is unsolvable as x2 cannot be a negative number as would be suggested by this equation. Any number, even a negative, multiplied by itself will always give a positive number but this equation leaves you with x2 = -48