Question 956903
Let the numbers be {{{ a }}} and {{{ b }}}
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(1) {{{ a + b  = 42 }}}
(2) {{{ b = 4a - 3 }}}
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(2) {{{ 4a - b = 3 }}}
Add (1) and (2)
(1) {{{ a + b  = 42 }}}
(2) {{{ 4a - b = 3 }}}
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{{{ 5a = 45 }}}
{{{ a = 9 }}}
and
(1) {{{ 9 + b  = 42 }}}
(1) {{{ b = 33 }}}
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The numbers are 9 and 33
check:
4 times the 1st number is {{{ 36 }}}
3 less than that is {{{ 33 }}}
that is the 2nd number
OK