Helpp plzz!! Given quadrilateral ABCD is congruent to Quadrilateral A'B'C'D', What is the measure of B'C'?

BC=18

Step-by-step explanation:

because both figures are congruent

BC is equal to B'C'

3x+12=5x+8  we solve the equations by adding and subtracting variables and numbers

3x-5x=8-12

-2x=-4 multiply by -1 and divide by 2

x=2

BC=18

tangent

step-by-step explanation:

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

24−3x=−27

step 1: simplify both sides of the equation.

24−3x=−27

24+−3x=−27

−3x+24=−27

step 2: subtract 24 from both sides.

−3x+24−24=−27−24

−3x=−51

step 3: divide both sides by -3.

−3x

−3

=

−51

−3

x=17

answer:

x=17

step-by-step explanation:

mark brainliest and have a great day!