Question 665508
Set up the equation...
x = 2y+5
x+y=-142
...
Substitute x into the second equation.
...
(2y+5) + y = -142
Combine like terms
{{{highlight(2y)}}} + 5 + {{{highlight(y)}}} = -142
3y + 5 = -142
Isolate y
3y + {{{highlight(5)}}} {{{highlight(-5)}}} = -142{{{highlight(-5)}}}
3y = -147
Divide both sides by 3
{{{cross(3)y/cross(3)}}} = {{{(-147)/3}}}
y = -49
x = 2(-49) + 5 = -98 + 5 = -93
...
Integers are -49 and -93
...
Check {{{cartoon(
-93 + -49,
-142)}}}
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