How do you evaluate #x(3 + y)# for #x= 2# and #y =12#?

1 Answer
Adam G.
Nov 10, 2015

Evaluate means to get the answer of the equation. We must substitue in the #x# and #y# values to evaluate the equation.

Explanation:

Given that we know #x = 2# and #y = 12# we can substitue this into the equation to get:

#2(3+12)#

The first step is to do the operation inside the bracket to bring it down to one term. This gives us:

#2(15)#

A number outside a bracket and a number inside a bracket simply means to multiply the two numbers together. If we multiply 2 and 15 together we get our answer:

#30#

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