Use a calculator, or just the addition techniques taught to you in 1st grade.
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The expression is 5b + 16
16 + 23 + 14 = 53
"16-7w plus 14-6w" is an algebraic expression - not an equation nor an inequality. It cannot be solved. So there is no way to determine the value of w and therefore the value of w-1.
32+14+20+18+16+31+21+16=168
It is: -16+(-14) = -30