-17 + b/8 = 13
+17 +17
b/8 = 30
x8 x8
b = 240
(-17 + 240/8 = 13 = -17 + 30 = 13 = 13 = 13)
7(c - 12) = -21
7c - 84 = -21
+84 +84
7c = 63
/7 /7
c = 9
(7(9-12) = -21 = 63 - 84 = -21 = -21 = -21)
-3 + P/7 = -5
+3 +3
P/7 = -2
x7 x7
P = -14
(-3 + -14/7 = -5 = -3 + -2 = -5 = -5 = -5)
46 = -6t - 8
+8 +8
54 = -6t
/-6 /-6
-9 = t
(46 = -6(-9) - 8 = 46 = 54 - 8 = 46 = 46)
