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3 years ago

Solve the equation. 6x−7=2x+13

Mathematics

2 answers:

Sergio [31]3 years ago

8 0

Answer:

6x - 7 = 2x + 13

6x - 2x = 13 + 7

4x = 20

x = 20/4

x = 5

Hope it helps!

BigorU [14]3 years ago

6 0

X=5 that’s the answer

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Answer:

The solution is x=1,y=2,z=3

Step-by-step explanation:

The given system of equations is ;\

2x−3y+4z=8...(1)

3x+4y−5z=−4...(2)

4x−5y+6z=12...(3)

Make x the subject in equation (1)

$x=\frac{8+3y-4z}{2}...(4)$

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$3(\frac{8+3y-4z}{2})+4y-5z=-4$

Multiply through by;

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Expand;

$24+9y-12z+8y-10z=-8$

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$17y-22z=-32...(5)$

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