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xenn [34]
3 years ago
15

Y=2x and 5x-y=9 substitution

Mathematics
2 answers:
grandymaker [24]3 years ago
7 0
1. Substitute 2x for y: 5x-2x=9
2. Combine like terms: 3x=9
3. Divide each side by 3: x=3
Naily [24]3 years ago
6 0

Answer:

3,6

Step-by-step explanation:

Plug 2x(y) into 5x -y = 9

5x -2x = 9

Add like terms.

3x = 9

Divide both sides by 3.

x = 3

Now, in order to find y, plug 3(x) into y = 2x

y = 2(3)

y = 6

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Pls answer first one to get it right and show work will get brainliest thanks :3
Setler79 [48]

Answer:

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Step-by-step explanation:

2(1.5x−2)=−0.5(−4x−32)

Step 1: Simplify both sides of the equation.

−2(1.5x−2)=−0.5(−4x−32)

(−2)(1.5x)+(−2)(−2)=(−0.5)(−4x)+(−0.5)(−32)(Distribute)

−3x+4=2x+16

Step 2: Subtract 2x from both sides.

−3x+4−2x=2x+16−2x

−5x+4=16

Step 3: Subtract 4 from both sides.

−5x+4−4=16−4

−5x=12

Step 4: Divide both sides by -5.

−5x−5

=12/−5

x=−12/5

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3 years ago
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Step-by-step explanation:

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