3x+2Y=23 and 1/2x-4=y

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1 Answer

3X + 2Y = 23

Y = 1/2 X - 4 <---- multiply by 2

2Y = X - 8 <---- apply to the first equation

3X + x - 8 = 23

4X = 31

X = 7 3/4 <---- apply to the 2nd equation

2Y = 7 3/4 - 8

2Y = -1/4

Y = -1/8
by Level 3 User (3.5k points)

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