1) 43 + x = 64Subtract 43 from both sides:x = 21
2) 34 - x = 59Add x to both sides:34 = 59 + xSubtract 59 from both sides:x = -25
3) x + 45 = 59Subtract 45 from both sides:x = 14
4) x + 45 = 35Subtract 45 from both sides:x = -10
1) 43 + x = 64
Subtract 43 from both sides:
x = 21
2) 34 - x = 59
Add x to both sides:
34 = 59 + x
Subtract 59 from both sides:
x = -25
3) x + 45 = 59
Subtract 45 from both sides:
x = 14
4) x + 45 = 35
Subtract 45 from both sides:
x = -10