3 years ago

Help asap. Like hurry

Mathematics

1 answer:

skelet666 [1.2K]3 years ago

7 0

Answer:

53.85

Step-by-step explanation:

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What is the value of x in the equation x – y = 30, when y = 15?

MrMuchimi

x+y=30.....(1) and x-y=2......(2) so(1)+(2)......x+y+x-y=30+2 so 2x=32...x=16 now apply x=16 in (1) so we get......16+y=30 so .......y=14

7 0

3 years ago

Read 2 more answers

Solve the equation 3^(2x) -4*3^(x+1) + 27 = 0. use rules of exponents to change 3^(x+1)

Leviafan [203]

Answer:

$\huge\boxed{x=1\ \vee\ x=2}$

Step-by-step explanation:

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