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8090 [49]
3 years ago
8

A = b and c = d, then a x c = b x d what kind of reasong is used here

Mathematics
1 answer:
Phoenix [80]3 years ago
5 0
A = b is given to us

Multiply both sides by c to get
a = b
a*c = b*c
The rule to multiply both sides by c is the multiplicative property of equality

Then on the right side, replace c with d. This replacement is possible due to the fact that c = d. This is using the substitution property.

So we go from
a*c = b*c
to this
a*c = b*d
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