1 answer:
Let's solve your equation step-by-step.
3x+6=x9
Step 1: Cross-multiply.
3x+6=x9
(3)*(9)=x*(x+6)
27=x2+6x
Step 2: Subtract x^2+6x from both sides.
27−(x2+6x)=x2+6x−(x2+6x)
−x2−6x+27=0
Step 3: Factor left side of equation.
(−x+3)(x+9)=0
Step 4: Set factors equal to 0.
−x+3=0 or x+9=0
x=3 or x=−9
You might be interested in
Answer:
flaimgo/albert
Step-by-step explanation:
200 cm is 2 m so 40m/2m = 20. Thus she will have 20 pieces
Answer:
81
Step-by-step explanation:
The area of a square is its side length squared so 9^2 is 81