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vladimir1956 [14]
3 years ago
10

Solve by elimination:9x+6y=18 -6x-6y=-24​

Mathematics
2 answers:
AnnyKZ [126]3 years ago
7 0

Answer:

1. x=−2/3 y+2

2. x=−y+4

Step-by-step explanation:

1. 9x+6y=18

Step 1: Add -6y to both sides.

9x+6y+−6y=18+−6y

9x=−6y+18

Step 2: Divide both sides by 9.

9x/9=−6y+18/9

2. −6x−6y=−24

Step 1: Add 6y to both sides.

−6x−6y+6y=−24+6y

−6x=6y−24

Step 2: Divide both sides by -6.

−6x/−6 =6y−24/−6

hammer [34]3 years ago
7 0

add these equations to eliminate y:

3x = -6

solve for x:

3x = -6. divide both sides by 3. <em>x = -2</em>

substitute x in the equation to find y:

9(-2) + 6y = 18.

6y - 18 = 18. add 18 to both sides.

6y = 36. divide both sides by 6. <em>y = 6</em>

end result:

x = -2

y = 6

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A system of equation is the set of equation in which the finite set of equation is present for which the common solution is sought.

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<h3>What is system of equation?</h3>

A system of equation is the set of equation in which the finite set of equation is present for which the common solution is sought.

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