Same sign add different sign subtract that means if their both positive you add and if one is positive and the other is negative you subtract
To find the answer, you need to determine what the difference is. In this case, the difference is 6.
134 - 128 = 6
140 - 134 = 6
146 - 140 = 6
152 - 146 = 6
So, to find the answer you would add 6 to the next set of numbers to continue the pattern. For example -
152 + 6 = 158
158 + 6 = 164
Answer:
y = 7
x = 12
Step-by-step explanation:
14x+7y=217, then 14x = 217 - 7y
14x+3y=189, then 14x = 189 - 3y
217 - 7y = 189 - 3y
add 7y to each side of the equation:
4y + 189 = 217
subtract 1890 from each side:
4y = 28
divide both sides by 4:
y = 7
14x + 3(7) = 189
subtract 21 from each side:
14x = 168
divide both sides by 14:
x = 12
14, 16, 17, 19, 20
17 is the middle one so the answer is 17
Hope this helps :)
