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Marquis Hancock
14 January, 08:05
How do u work 4y+3=3y+x using substitution
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Winston Koch
14 January, 09:20
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Hello from MrBillDoesMath!
I think more info is needed but here's a first step.
Suppose
4y + 3 = 3y + x
Subtracting 3y from each side gives
4y - 3y + 3 = (3y - 3y) + x or
y + 3 = x.
Subtracting 3 from both sides gives:
y = x - 3.
So ... if you have another equation involving x and y you could substitute the above y value (i. e. x-3) for every occurrence of y
Regards, MrB
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