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Blandede og supplerende opgaver - VUC Aarhus

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Matematik på AVUOpgaver til niveau G8: Indsæt a = 2 <strong>og</strong> b = 3 i disse b<strong>og</strong>stavudtryk:5a6b 12a+ 6 − 2b − + 4 ⋅ 2a − 52222+2 ⋅ a ⋅ a + 2a + 5b − a + 3b − 4 ⋅ b ⋅ b − a9: Reducer begge b<strong>og</strong>stavudtrykkene fra opgaven ovenover.Indsæt <strong>og</strong>så a = 2 <strong>og</strong> b = 3 i de reducerede b<strong>og</strong>stavudtryk.10: Løs disse ligninger:a: 4 ⋅ x = 96b: 178 + x = 341c: 12,5 = x : 16d: 4 ⋅ x + 31 = 75e: 217 = x ⋅ 9 − 35 f: 7x − 12 = 3x + 46g: 32 ⋅ x + 19 = 403 h: 12x − 56 = 832i: 119 = 5 ⋅ x + 34j: 222 = 44 ⋅ x + 112k: x : 3 + 12 = 90l: 29 = 3x − 5, 511: Løs disse ligninger:a: 3,8x + 1,5 = 11b: 4,7 + 2,5x = 9, 2c: 0 ,8 + 3,2x = 5, 6xxxd: 8 = −19e: 14+ = 25f: 53 + = 1015724xg: 12= + 5, 2h:3,424 − x2 ⋅ x3,5 = i: = 2645j: x ⋅ 2,8 − 5,6 = 7k: 2,4 ⋅ x − 7,1 = 20, 5l: x :11+211 = 234m: 22 : x = 4, 4n: 5 ,2 - x = 2, 8o: ⋅ x + 58 = 1701412: Løs disse ligninger:a: 5x − 1,5 = 3x + 10,9b: 7 ,2 ⋅ x − 4,2 = 5,8⋅x + 2,1c: 16 − (2x − 3) = x − 8d: 2 ⋅ 9 − 5(x − 2) − x = 4e: 47 − 3,5x = 30, 2f: x ⋅ 9,6 − 0,4 = 110<strong>Blandede</strong> <strong>og</strong> <strong>supplerende</strong> <strong>opgaver</strong> Side 188

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