Kyle is asked to solve a system of equations by substitution: 2x + 3y = 12 x - 2y = 4 which step should kyle take first? why?a.kyle should solve the first equation for y because 12 is divisible by 3.b.kyle should solve the second equation for y because y is being subtracted.c.kyle should solve the second equation for x because x has a coefficient of 1.d.kyle should solve the first equation for x because x has a coefficient greater than 1.