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● 次の方程式を解きなさい [0E4-10]
(1) | | | | | | | | | | | | | | | 1.2 | x | + | 1.2 | x | − | 1.5 | = | 1.5 | x | − | 0.42 | | | | | | | | | | | | | | |
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(2) | | | | | | | | | | | | | | | 0.9 | + | 0.1 | x | = | 1.3 | x | − | 1.2 | x | + | 0.9 | | | | | | | | | | | | | | |
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(3) | | | | | | | | | | | | | | | 1.3 | + | 1.2 | x | = | −2 | x | − | 1.7 | x | + | 5.22 | | | | | | | | | | | | | | |
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(4) | | | | | | | | | | | | | | 0.6 | + | 1.2 | x | − | x | = | −0.7 | x | + | 0.42 | | | | | | | | | | | | | |
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(5) | | | | | | | | | | | | | | | 1.1 | x | − | 0.5 | x | − | 1.9 | = | −1.2 | x | + | 0.62 | | | | | | | | | | | | | | |
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