Answer:
<h2>
y = 4</h2>
Step-by-step explanation:
x + 2y = 10 ⇒ 2y - 10 = -x
-x + 4y = 14
2y - 10 + 4y = 14
6y = 24
y = 4
Answer:A
Step-by-step explanation:
The answer is 3x10^12 also can i get brainliest please??
If two adjacent angles have their exterior sides in perpendicular lines, then the two angles are also perpendicular. Exterior and interior angles sum up to 180 degrees. Hence if the exterior angle is perpendicular, then the interior angle should also be perpendicular in order to sum up to 180 degrees.
1)B -26-27x
steps :distribute ,-9 times 3 =-27 , -9 times 3x = -27x , now combine like terms :you have a 1 and a -27 ,1-27=-26,and you left with -27
2)D 11-49x
steps :distribute , positive 7 times 1= 7 and then positive 7 times negative 7x =-49, now combine like terms ,since you have a positive 4 combine it with positive 7 which is 11 and finally put it together with -49x which it would look like 11-49x
