Question 1045381
{{{system(3x + y = 5,4x - 7y = -10)}}}


{{{system(7(3x+y)=7*5,4x-7y=-10)}}}


{{{system(21x+7y=35,4x-7y=-10)}}}


{{{21x+7y+4x-7y=35-10}}}


{{{25x=25}}}


{{{highlight(x=1)}}}


Can you solve for the value of y ?