Question

Find the zero of the function f(x)=1.5x+2(x-3)+5.5(x+9)

Answer 1

namely set f(x) to zero and solve for "x", thus \(\bf f(x)=1.5x+2(x-3)+5.5(x+9)\qquad thus
\\ \quad \\
{\color{brown}{ 0}}=1.5x+2(x-3)+5.5(x+9)\)

distribute and solve for "x"

Answer 2

1.5x+2x-6+5.5x+247.5
1.5x+2x+5.5x+241.5
9x=-241.5
=-26.83

Answer 3

thank you so much