Answer: none
1) combine like terms: 4x + 8 = 4x - 13
2) Add 13 to both sides (addition property of equality)
3) Subtract 4x from both sides (subtraction property of equality)
4) 21 does not equal 0
Answer: download photo math
Step-by-step explanation:
Answer:
35
Step-by-step explanation:
x + 55 = 90
x = 90 - 55
x = 35