Resolve Estas ecuaciónes A) (x+1) × (x-3)+3=0
B) (x+9)×(x-9)=3×(x-27)
C) x × (3x-2)=65
D) 4x - (x2-4)=2x - 4

answer: was that a question or answer?

step-by-step explanation:

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation:

answer: rolling a number cube and flipping a coin.

step-by-step explanation: