Work out the value of 1. 7/2 -a ² 2. 3x-8 = 19
2 answers:
Answer:
1. -45 1/2.
2. x = 9.
Step-by-step explanation:
a/b - a^b when a = 7 and b = 2
= 7/2 - 7^2
= 7/2 - 49
= -91/2
= -45 1/2.
3x - 8 = 19
3x = 19 + 8 = 27
x = 9.
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