Question 346632
Let {{{A}}} and {{{B}}} be the integers.
1.{{{A+B=20}}}
.
.
2.{{{5A=2+2B}}}
From eq. 1,
{{{2A+2B=40}}}
From eq. 2,
{{{2B=5A-2}}}
Substitute into eq. 1,
{{{2A+(5A-2)=40}}}
{{{7A=42}}}
{{{highlight(A=6)}}}
Then from eq. 1,
{{{6+B=20}}}
{{{highlight(B=14)}}}