Question 1107876
Let the two numbers be {{{ a }}} and {{{ b }}}
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(1) {{{ 4a - 2b = -16 }}}
(2) {{{ a + b = -1 }}}
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(1) {{{ 2a - b = -8 }}}
Add (1) and (2)
{{{ 3a = -9 }}}
{{{ a = -3 }}}
and
(2) {{{ a + b = -1 }}}
(2) {{{ -3 + b = -1 }}}
(2) {{{ b = 2 }}}
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The numbers are -3 and 2
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check:
(1) {{{ 4*(-3) - 2*2 = -16 }}}
(1) {{{ -12 -4 = -16 }}}
(1) {{{ -16 = -16 }}}
OK