Question

Select all of the equations that are true. 9.0 – (16.1 + 2) = (-47 – 2) – 3.r (9z + 4) – (6 – 3x) = 12: - 2 (51 - 3) - (2n – }) = (6 + 6n) - ( + 3n) O (-8.1m - 2) - (-2.4m – 3) = -10.5m - 5 O (7-3) -(4-5b) - (6 + 2a) = -3 - 3a - 56

Answer 1

`\begin{gathered} \Rightarrow9x-(16x+2)=(-4x-2)-3x \\ \Rightarrow9x-16x-2=-4x-2-3x \\ \Rightarrow-7x-2=-7x-2 \\ 1st\text{ is true} \end{gathered}`
`\begin{gathered} \Rightarrow(9x+4)-(6-3x)=12x-2 \\ \Rightarrow9x+4-6+3x=12x-2 \\ \Rightarrow12x-2=12x-2 \\ 2nd\text{ is also true.} \end{gathered}`