Which is the best first step in solving the following system of equations y=7x+3 y=9x
2 answers:
Answer:
13.5 and 1.5
Step-by-step explanation:
y=7x+3
y=9x
9x=7x+3
2x=3
x=3/2
y=9(3/2)
y=13.5
Answer:
Replace the y value in y=7x+3 with 9x
Answer: x=3/2
Step-by-step explanation:
y=7x+3; y=9x
9x=7x+3
Subtract 7x from both sides
2x=3
Divide by 2 on both sides
x=3/2
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n = 20
d = 6
a = 4
L = a + (n - 1)*d
L = 4 + (20 - 1)*6
L = 4 + 19*6
L = 118
Sum = (a + L)*n/2
Sum = (4 + 118) * 20/2
Sum = 122 * 10
Sum = 1220
Answer:
The answer is A
Step-by-step explanation:
A. The expression is equivalent, and it is completely factored.
Answer is C) 6
36 + 3(4x - 9) = 6(2x + 1)
36 + 12x - 27 = 12x + 6
12x - 12x = 6 - 9
0 ≠ -3
No solution
Answer:
819÷13=63
Step-by-step explanation:
you divide 819 by 13 and you get 63
yeah i dont understand what that even means.
