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
add these equations to eliminate y:
3x = -6
solve for x:
3x = -6. divide both sides by 3. x = -2
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. y = 6
end result:
x = -2
y = 6