Question 931699

{{{12y+7x=-4}}} 

the value of {{{x}}} if {{{y=-11}}} will be

{{{12(-11)+7x=-4}}}

{{{-132+7x=-4}}}

{{{7x=-4+132}}}

{{{7x=128}}}

{{{x=128/7}}}

{{{x=18.28571428571429}}} exact solution

{{{x=18.29}}} approximate solution