Correct
4m + 9 + 5m - 12 = 42 Combining like terms to both sides:9m=42+12-9=>9m=45 divide both side by 9:m=5;
Yes, 42 inches is equivalent to 3.5 feet, not 4 feet. To convert inches to feet, you divide the number of inches by 12 because there are 12 inches in a foot. Therefore, 42 inches divided by 12 equals 3.5 feet.
5.25
3x+42=6x+12 42=6x-3x+12 42=3x+12 42-12=3x 30=3x 10=x
Correct
4m + 9 + 5m - 12 = 42 Combining like terms to both sides:9m=42+12-9=>9m=45 divide both side by 9:m=5;
21
If -6d = 42 then 6d = -42. then divide by 6, d = -7
Yes, 42 inches is equivalent to 3.5 feet, not 4 feet. To convert inches to feet, you divide the number of inches by 12 because there are 12 inches in a foot. Therefore, 42 inches divided by 12 equals 3.5 feet.
5.25
To find half of 84, you divide 84 by 2, which equals 42. To find half of 42, you divide 42 by 2 again, which equals 21. Therefore, a half of a half of 84 is 21.
48
6m = 42 Divide both sides by 6: m = 7
14
3x+42=6x+12 42=6x-3x+12 42=3x+12 42-12=3x 30=3x 10=x
42+4y -12 = 13y -12 -2y 4y -13y+2y = 12 -12 -42 -7y = -42 y = 6