Question 188138
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The two numbers --> <font color=red>x</font> (1st) & <font color=red>y</font> (2nd)


1st condtn: Sum is 16, x+y=16 {{{EQN1}}}
2nd condtn: The first number plus 2 --> x+2. 
Then more than 3 times the second --> x+2+3y.
They are equal to 18 --> x+2+3y=18 {{{EQN2}}}


In {{{EQN1}}} we get, y=16-x {{{EQN3}}}, and subst. in {{{EQN2}}}:
{{{x+2+3(highlight(16-x))=18}}}
Expand & Combine similar terms:
{{{x+48-3x=18-2}}} ----> {{{48-16=3x-x}}} ---> {{{32=2x}}} ---> {{{cross(32)16/cross(2)=cross(2)x/cross(2)}}}
x=<font color=red>16</font> (1st no.) Go back {{{EQN3}}}:
y=16-16=<font color=red>0</font> (2nd no.)


Check in {{{EQN2}}}:
{{{16+2+3(0)=18}}}
{{{18=18}}}
Thank you,
Jojo</font>