Question

sendo f(x)=3x+2m e g(x)=-2x+1 calcule m sabendo que f(10)-g(1)=3

Answer 1

se f(10) - g(1)=3 -> (30 + 2m) - (-2+1) = 3 -> 2m +1 +30 = 3 -> 2m = -28 .: m= -14

Answer 2

$f(x)=3x+2m\\f(10)=3\cdot10+2m\\f(10)=30+2m\\\\g(x)=-2x+1\\g(1)=-2\cdot(1)+1\\g(1)=-2+1\\g(1)=-1\\\\30+2m-(-1)=3\\30+2m+1=3\\2m=-28\\m=-14$