2x - 3y = 4
This can't be solved, although you can express each variable in terms of the other.
x = (4-3y)/2
y = (2x-4)/3
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Here is the 4 times table up to 12: 1 times 4 equals 4 2 times 4 equals 8 3 times 4 equals 12 4 times 4 equals 16 5 times 4 equals 20 6 times 4 equals 24 7 times 4 equals 28 8 times 4 equals 32 9 times 4 equals 36 10 times 4 equals 41 11 times 4 equals 44 12 times 4 equals 48
3
Well, if 3x equals 12, then x equals 4. And if y equals 3x, then y equals 3 times 4, which is 12. So, y equals 12. Math can be a piece of cake when you break it down like that!
4 times 21 equals 84.
2.9906975624424411 to the power of 4 equals 80.