17 plus 21 equals 38
A + 9 = 21 A = 21 - 9 A = 12
5
depends what 'a' =
-3+y=17+1 im assuming solve for y?-3+y=18 add 3 to both sidesy=21
21 Uhm, no, 17 actually...
-21
3+4m+5m=214m+5m=21-39m=18m=18/9m=2
21+21+17=59
2
2z+17=21 subtract 17 from both sides. 2z=4 divide both sides by 2 z=2
13 and 17/21