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OPGAVEN |
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Los op (twee decimalen): |
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1. |
1 + 2x4 = 13 |
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2. |
x5 - 5 = 8 |
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3. |
x3/7 = 43 |
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4. |
x2/8 = -4 |
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5. |
x-1/2 = 6 |
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OPLOSSINGEN |
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1. |
2x4 = 12
Þ x4 = 6 Þ
x = 61/4 V x = -61/4 (»
± 1,57) |
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2. |
x5 = 13
Þ
x = 131/5 (»1,67) |
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3. |
x = 437/3 (»
6478) |
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4. |
x1/4 = -4
heeft geen oplossing |
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5. |
x = 6-2 = 1/36
(» 0,028) |
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