7.4x1.5+0.74x26-0.26x59
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![7.4x1.5+0.74x26-0.26x59](/uploads/image/z/1685190-30-0.jpg?t=7.4x1.5%2B0.74x26-0.26x59)
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7.4x1.5+0.74x26-0.26x59
7.4x1.5+0.74x26-0.26x59
7.4x1.5+0.74x26-0.26x59
7.4x1.5+0.74x26-0.26x59
=7.4x1.5+7.4x2.6-0.26x59
=7.4x(1.5+2.6)-0.26x59
=7.4x4.1-0.26x59
=30.34-15.34
=15