1 + 2 = 3 + 3= 6 + 4 = 10 + 5 = 15 + 6 = 21 +7 = 28 + 8 = 36 + 9 = 45
5 + 4 * 7 * 4 - 9 + 3 / 3 = 5 + 28*4 - 9 + 1 = 5 + 112 - 9 + 1 = 109
n = 7. 3(7) + 7 = 28. 21+7=28
true. 5+3=8 8+7=15 5+7=12 12+3=15
3+6+5+7+(9-7)=23
5/7 + 3/4 = 113/28
59
Yes. 5 + 3 + 7 = 15 and 5 + 7 + 3 = 15
28
5 7 --- = ---- 3+1 6 ________________ 5 7 --- = --- 4 6 _______________ 4*7 = 5*6 28 = 30 28=/=30 False equation
1/7 + 1/2 + 5/28 = 4/28 + 14/28 + 5/28 = 23/28
1 + 2 = 3 + 3= 6 + 4 = 10 + 5 = 15 + 6 = 21 +7 = 28 + 8 = 36 + 9 = 45
5 plus 3 plus 7 does equal 5 plus 7 plus 3; this is an example of the commutative property of addition. Therefore, the statement is true.
5 + 4 * 7 * 4 - 9 + 3 / 3 = 5 + 28*4 - 9 + 1 = 5 + 112 - 9 + 1 = 109
28 - 3(3 + 4) = 28 - (3 x 7) = 28 - 21 = 7
n = 7. 3(7) + 7 = 28. 21+7=28
true. 5+3=8 8+7=15 5+7=12 12+3=15