3 years ago

X + 2y = 3 5x + 3y = 8

1 answer:

5 0

X + 2y = 3 Solve the Equation
- 2y -2y
x = 3 - 2y

5x + 3y = 8
5(3 - 2y) + 3y = 8 Substitute x

15 - 10y + 3y = 8 Combine Like Terms
15 - 7y = 8
-15 -15
-7y = -7
Divide 7 from y (Do on both sides)

y = 1

x = 3 - 2(1) Substitute y
x = 3 - 2

x = 1

(X, Y) = (1, 1)

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Frank has a 2-digit number on his baseball uniform. The number is a multiple of 10 and has 3 for one of its factors. What three

denis23 [38]

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8 0

2 years ago

Read 2 more answers

Solve this equation: 3x-1/5-2/9x=124/5

Vaselesa [24]

Well, you can only combine the numbers with the variable (the x) in front of them, since there’s no other number on the left side of the equation to combine that lone number with

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6 0

3 years ago

Help please!!!!!!!!!!!!

creativ13 [48]

Answer:

$\frac{\pi }{3},\:\frac{2\pi }{3}$

Step-by-step explanation:

Let a=THETA (angle)

$1+\sin \left(a\right)-1=\frac{\sqrt{3}+2}{2}-1\\\sin \left(a\right)=\frac{\sqrt{3}+2}{2}-1\\a=\arcsin \left(\frac{\sqrt{3}+2}{2}-1\right)+2\pi n,\:a=\pi -\arcsin \left(\frac{\sqrt{3}+2}{2}-1\right)+2\pi n\\a=\frac{\pi }{3},\:a=\frac{2\pi }{3}$