Fill in the missing work and justification for step 2 when solving 3(x + 2) = 12. step work justification 1 3(x + 2) = 12 given 2 3 3x + 6 ? 6 = 12 ? 6 subtraction property of equality 4 3x = 6 simplify 5 three times x over three equals six over three division property of equality 6 x = 2 simplify 3x + 6 = 12; distributive property 3x + 2 = 12; distributive property 3x + 6 = 12; multiplication property of equality 3x + 2 = 12; multiplication property of equality

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

idk what your asking for but the sum equals 13

the terms in pattern b are 4 times the terms in pattern a