we have that
\(1.4t-0.4(t-3.1)=5.8\\ 1.4t-0.4t+(0.4*3.1)=5.8\)
Group terms that contain the variable t, and move the constant to the opposite side of the equation
\(1.4t-0.4t+1.24=5.8\\ (1.4t-0.4t)=5.8-1.24\\ t=4.56\)
therefore
the answer is
the value of t is equal to \(4.56\)
