13+7+6+5=31
13.7143
1)5r+7=13+2r+3r 2)5r+7=13+5r 3)5r's cancel 7=13 4)Subtract thirteen on both sides 7 =13 -13 -13 5)Answer is no solution because -6 doesn't equal to 0. -6=0 NO SOLUTION!!! Have fun with math!
7/12 ÷ 5/6 = 7/10 or 0.7
-5
It is: 7+13-6+5 = 19
13/2 x 6/5 = 7 and 4/5
8+5=6+7
13+7+6+5=31
3/6 + 5/7 = 17/14 or 13/14
(8 + 5)*(7 - 6) = 13*1 = 13
13
Well since an equation has an equal sign it is 6+7=13
6 - 13 - 2 - 12 - 7 - 14 = -42
19
It is the same as: 6/8+7/8 = 13/8 or 1 and 5/8
multiply 7 x 13 = 91 that is the greatest common multiple. Then multiply the numerator 6 x 13 and the numerator 5 by 7 6/7 = 6 x 13 /91 = 78/91 5/13 = 5 x 7/91 = 35/91