Subtract 3x from each side: 4x - 2 + 13 = 5
Add 2 to each side: 4x + 13 = 7
Subtract 13 from each side: 4x = -6
Divide each side by 4: x = -1½
Job done.
2 + 3 + 4 + 5 + 6 = 20
-5-1 plus 4 plus 2-6 plus 4 is equal to -2
2 + 1 + 5 + 52 + 4 + 6 = 70
4-5 plus 5-6 = -2
1 + 2 + 3 + 4 + 5 + 6 + 100 = 121
2 + 2 = 4 +2 = 6 + 5 = 11
4 + 6 + 6 + 5 + 5 + 4 + 6 + 5 + 5 + 6 + 5 + 5 + 5 + 3 = 70
30. 2+3+5=10, 4+6=10, and 2+4+1+1+2=10.
It is 4 and 5/6.
4-5+6+2-10= -3
9 + 6 + 9 + 6 + 9 + 8 + 5 + 2 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 99
80