Answer:x=-8
Step-by-step explanation:subtract 21 from both sides then simplify 31-21 to -8
2/3x - 1/2y = 3 |multiply both sides by 6
4x - 3y = 18
1/2x + y = 5 |multiply both sides by 2
x + 2y = 10
Answer: B) 4x - 3y = 18 and x + 2y = 10
Answer:
153
Step-by-step explanation:
ans.
5x=85
x =85÷5
=17
9x=17x9
=153
Answer:
Step-by-step explanation:
Explicit formula of the sequence,











The answer is in the red part but the work is everything on top.