u/7=17/3
You could do this the long way and solve for the common difference but, in this particular case, there is a short cut because 7 - 4 = 3 = 3 - 1 As a result, U7 - U4 = U4 - U1 so that U1 = 2*U4 - U7 = 2*141 - 132 = 150.
The answer is n = 5.
u7
3/x = 17/9Take reciprocals of bothe sides: x/3 = 9/17 Multiply both sides by 3: x = 27/17 = 1 10/17
10x - 3 = 17 Add 3 to both sides: 10x = 20 Divide both sides by 10: x = 2
set the equation equal to zero: 3x + 17=0 subtract 17 from both sides so you end up with : 3x=-17 divide both sides by 3 to isolate x: x=-17/3 your answer is -17/3
-3+y=17+1 im assuming solve for y?-3+y=18 add 3 to both sidesy=21
u7
7 plus 2 is 9. 9 plus 8 is 17. 17 plus 3 is 20.
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u7
-4(3 - p) > 5(p + 1) => -12 + 4p > 5p + 5-17 > p, that is p < -17.