En un triángulo ABC, recto en B, se traza la bisectriz interior BE y luego AQ | BE . Si m<QAC = 20, calcular m<BCD a)20° b)30° c)45° d) 25° e)35°

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:

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right

is there a picture

step-by-step explanation: