# In what equation to find unknown deductible, it is necessary from reduced to subtract a difference? x - 5 = 12 15 - x = 7 7 + x = 12 35: x = 7

Boris

324

X-5/12=2/12 we multiply by 12 12kh-5=2 the 12th =2+5 of the 12th =7 x =7/12 to the 15/16th =3/16 we multiply by 16 of the 15-16th =3 16u =15-3 16u =12 at =12/16 at =3/4 z+7/19=11/19 it is multiplied by 19 19z+7=11 19z=11-7 19z=4 z=4/19 7/25+ r =18/25 we multiply by 25 7+25r =18 25r =18-7 25r =11 r =11/25

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elka

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