The answer is 7

22

48 + 1 = 49

3n + 4n = 42 7n = 42 n = 42/7 n = 6

7+2+5= 14 35 42

42 72

The answer to 7 x 6 plus 9 is 51. You have to multiply 7 by 6 which equals 42 and add 9 onto it which equals 51.

42 + 42 = 84

96

2 + 6 * 7 = 2 + 42 = 44

42

16+7m16+7(42)16+294310

They are equal. 7 squared is 7 x 7, which equals 49. 6 x 7 = 42, plus another 7 = 49.

49 x2 + 14x = -7 x2 + 14x + 49 = 42 (x + 7)2 = 42 x = -7 ± √42

42 + x2 = 13x ∴ x2 - 13x + 42 = 0 ∴ (x - 6)(x - 7) = 0 ∴ x ∈ {6, 7}

5X + 7 = 42 subtract 7 from each side 5X + 7 - 7 = 42 - 7 5X = 35 divide both sides integers by 5 (5/5)X = 35/5 X = 7 ----------check in original equation 5(7) + 7 = 42 35 + 7 = 42 42 = 42 --------------checks

10x + 7 = 4x + 49 6x + 7 = 49 6x = 42 x = 6

28 + 42 = 70

42 and 42

It is: 38+4 = 42

13 + 42 = 55

40+48=88. 81 + 7 = 88...

7x + 9 = 51 7x = 42 x = 42/7 = 6

42

-6d = -42-6(7) = -42d = 7

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