\(\left(x-140\right):7=33-23.3\\ \left(x-140\right):7=33-69\\ \left(x-140\right):7=-36\\ x-140=-36.7\\ x-140=-252\\ x=-252+140\\ x=-112\)
\(\left(x-140\right):7=33-23.3\)
\(\left(x-140\right):7=33-69\)
\((x-140):7=-36\)
\(x-140=-252\)
\(x=-112\)
\((x-140):7=33-23.3\)
\((x-140):7=33-69\)
\((x-140):7=-36\)
\(x-140=-36.7\)
\(x-140=-252\)
\(x=-252+140\)
\(x=-112\)