Solving equations Mrs. Hall.

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Presentation transcript:

Solving equations Mrs. Hall

Question 1 Y + 9 = 15 Y + 9 – 9 = 15 – 9 Y = 6

Question 2 A – 7 = -3 A – 7 + 7 = -3 + 7 A = 4

Question 3 -4 = x + 3 -4 – 3 = x + 3 – 3 -7 = x Or x = -7

Question 4 7p + 8p = 225 15p = 225 15p ÷ 15 = 225 ÷ 15 P = 15

Question 5 -10k + 2k = 64 -8k = 64 -8k ÷ -8 = 64 ÷ -8 K = -8

Question 6 6h – 9h = 23 + (-2) -3h = 21 -3h ÷ -3 = 21 ÷ -3 h = -7

Question 7 16b - 12b = -35 + 7 4b = -28 4b ÷ 4 = -28 ÷ 4 b = -7

Question 8 19c – 20c = 59 -1c = 59 -1c ÷ -1 = 59 ÷ -1 c = -59

Question 9 8t – 19t = 100 – 12 -11t = 88 -11t ÷ -11 = 88 ÷ -11 t = -8

Question 10 20f – 13f = 112 – 28 7f = 84 7f ÷ 7 = 84 ÷ 7 f = 12

Question 11 19w – 17w = -58 2w = -58 2w ÷ 2 = -58 ÷ 2 W = -29

Question 12 6j + 10j = -48 + 16 16j = -32 16j ÷ 16 = -32 ÷ 16 j = -2

Question 13 11d – 20d = 110 – 2 -9d = 108 -9d ÷ -9 = 108 ÷ -9 d = -12

Question 14 7x – 10x = -42 -3x = -42 -3x ÷ -3 = -42 ÷ -3 x = 14

Question 15 13g – 5g = -56 8g = -56 8g ÷ 8 = -56 ÷ 8 g = -7

Question 16 7x – 18x = -99 -11x = -99 -11x ÷ -11 = -99 ÷ -11 X = 9

Question 17 8v = 15 – 31 8v = -16 8v ÷ 8 = -16 ÷ 8 V = -2

Question 18 8j – 14j = -24 -6j = -24 -6j ÷ -6 = -24 ÷ -6 j = 4

Question 19 10r + 15r = 101 + 24 25r = 125 25r ÷ 25 = 125 ÷ 25 r = 5

Question 20 16y + 10y = 100 – 48 26y = 52 26y ÷ 26 = 52 ÷ 26 Y = 2