(2/5) + (1/4) = 8/20 + 5/20 = 13/20
5
3x+5=20 x=5 since 5x3+5=20
1. 7d-13=3d+72. 7d-20=3d3. -20=-4d4. d=55. Check your answer:7*5-13=22, 3*5+7=22D equals 5
13 + a + 7 = 5 + b - 20. This assumes the two numbers are different.
20 = 400
(2/5) + (1/4) = 8/20 + 5/20 = 13/20
5
15+20
3x+5=20 x=5 since 5x3+5=20
1. 7d-13=3d+72. 7d-20=3d3. -20=-4d4. d=55. Check your answer:7*5-13=22, 3*5+7=22D equals 5
basically you asked what -28+21 which equals -7
13 + a + 7 = 5 + b - 20. This assumes the two numbers are different.
13...... 9 plus 5 equals 14...... 14 minus 1 equals 13
A = 77 + 5 + 8 = 20
Negative 15 plus positive 20 equals 20 minus 15, which equals 5.
5