The answer is D. Quadrant I, as both the X and Y coordinates are positive.
2x + 3y = 1
y = 3x + 15
Get the same variables on each side
3y = 1 - 2x
y = 15 + 3x
Multiply both sides of that second equation by 3 so we can subtract.
3y = 1 - 2x
3y = 45 + 9x
Subtract the equations from each other.
0 = -44 - 11x
Solve.
44 = -11x
-4 = x
Use x in an earlier equation to find y.
y = 3x + 15
y = 3 * -4 +15
y = -12 + 15
y = 3
x = -4, y = 3
6.00037 x 10^6 is the answer in scientific notation
Answer:
A= -53/7
Step-by-step explanation:
1 x 10 -1 x 7 x A=7 x 9
10-7A =7 X 9
10-7A=63
-10 -10
-7A=53
A= -53/7
