Answer:
d= 99 e= 81 f= 99
Step-by-step explanation:
Answer: x = 12, y = 50
Step-by-step explanation: 2y-5 and 95 are vertical angles and vertical angles are always congruent (equal). So, 2y - 5 = 95. 2y = 100. y = 50. Solving for x is slightly more difficult. 3x and 144 are linear pairs and linear pairs are adjacent and equal 180° because a straight line is 180°. So 3x + 144 = 180. 3x = 36. x = 12.
Answer:
-8
Step-by-step explanation:
Hope this helps, have a great day:)
Answer:
x=-2
Step-by-step explanation:
3x-8x = -5x
8+2= 10
5x = 10
simp: x=-2
x=2, y=3 is a pair of a equations right there, so a correct solution.
How about another linear system?
Answer: x+y=5, 10x + y = 23
