M∠A = (6x +4)° and m∠B = (10x + 16)°. Find x if the angles are supplementary. A.12°
B.14°
C.8°
D.10°

Please don't reply just for the points, I really need help understanding these things, if possible please leave me an explanation on how you got this. P. S supplementary angles add up to 180 degrees

d) 10°

Step-by-step explanation:

The sum of supplementary angles always equal 180°.

Since two angles are supplementary, the two angles must add up to equal 180°. Angles A and B are known, so the equation is as follows.

Rearrange and combine like terms:

Isolate x:

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!