Step-by-step explanation:
28+29=57
57+42=99 so 99 should be your answer
Answer:
x = 2
Step-by-step explanation:
The left side would be (3x - 12)
The right side would be (-4x+2)
In an equation, 3x - 12 = -4x+2
Combine all the letters on the left and plain numbers on the right,
3x + 4x = 12 + 2
Note: When you transfer to the other side of the equal sign, the number will change its sign.
Simplify the 3x + 4x = 12 + 2,
7x = 14

x = 2
Answer:
1st and 3rd
Step-by-step explanation:
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The isn’t any pictures attached
Answer: 80
Step-by-step explanation: :D happy to help. Plz friend me!!!