What is the value of -4D^2+15D^2÷5 for D=1
2 answers:
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Answer:
a = - 27
Step-by-step explanation:
- a - 6 = 12 ( add 6 to both sides )
- a = 18 ( multiply both sides by 3 to clear the fraction )
- 2a = 54 ( divide both sides by - 2 )
a = - 27