30
David Macejkovic
Wiki User
∙ 13y ago40 + (-10) = 30
Wiki User
∙ 11y ago50
50 + 40 + 40 + 40 + 30 + 30 + 20 + 10 = 260
40
50 - 40 = 10 + 0
thinking is amazing
10 + x = 50x = 40
50 + 40 + 40 + 40 + 30 + 30 + 20 + 10 = 260
10 + 10 + 10 + 10 = 40
60
10 plus 20 plus 30plus 40 plus 50 equals 150 because 50 plus 40 equals 90 plus 30 =120+20= 140 then + 10 = 150
40
50 - 40 = 10 + 0
23+7+10=40
30 + (30-10) = 50
thinking is amazing
4x + 10 + 3x = 40 - 3x 4x + 10 + 3x + 3x = 40 20x = 40 x = 2
10 + x = 50x = 40
10x plus 40 is 50x.10+40=50 and then you just add the x so:10x+40=50x