Evaluate the expression when a=6, b=2, c=-5, and d=-2
a-b/c-d =
a- (b/c) - d
a- (2/-5) -(-2)
a- (-2/5) - (-2)
a + (2/5) - (-2)
6 + (2/5) + 2
6 + 0.4 + 2
8.4
To evaluate the expression a-b/c-d when a=6, b=2, c=-5, and d=-2, you can follow the order of operations (PEMDAS/BODMAS):
Step 1: Evaluate the division (b/c)
b/c = 2/(-5) = -2/5
Step 2: Evaluate the subtraction (a - (-2/5))
a - (-2/5) = 6 - (-2/5)
To subtract fractions, we need a common denominator. The common denominator here is 5, so we multiply the numerator and denominator of -2/5 by 5:
6 - (-2/5) = 6 - (-10/5) = 6 + 10/5
Step 3: Simplify the addition
6 + 10/5 = 6 + 2 = 8
Therefore, when a=6, b=2, c=-5, and d=-2, the expression a-b/c-d evaluates to 8.