tge answer is -2x because you have to countdown 4x from 6x. you can coundown because you have the same variable (x) at both numbers (4 and 6). hope it helps!;)
M+f=35 f=5+m^2 sub 5+m^2 for f m+5+m^2=35 m^2+m+5=35 minus 35 both sides m^2+m-30=0 factor what 2 numbers mulitply to get -30 and add to get 1 -5 and 6 (m-5)(m+6)=0 set to zto m-5=0 m=5
