So, to solve this we will have to Test by substituting the 4 into the equations given
[tex]\begin{gathered} 18b\text{ - 179 +957 }\frac{\cdot}{\cdot}\text{ 87} \\ 18(4)\text{- 179 +957 }\frac{\cdot}{\cdot}\text{ 87} \\ 72\text{- 179 +957 }\frac{\cdot}{\cdot}\text{ 87} \\ 72\text{- 179 +11} \\ -96\ne\text{ 180 (not equal to 180)} \end{gathered}[/tex][tex]\begin{gathered} (B)\frac{33b}{12}\text{ = }\frac{33\times4}{12}\text{ = }11\text{ } \\ \text{ 11}\ne180(not\text{ equivalent to 180)} \end{gathered}[/tex][tex]\begin{gathered} C)b^2\text{ + 120} \\ \text{ (4)}^2\text{ + 120 =136 } \\ \text{136 }\ne\text{ 180(Not equivalent to 180)} \end{gathered}[/tex][tex]\begin{gathered} D)\text{ 51b - 24} \\ \text{ 51(4) - 24 } \\ \text{ 204 -24 = 180 This question is correction} \end{gathered}[/tex]
E) 11b + 187 -2756/13
11(4) + 187 - 212
44+187 - 212 = 19
19 is not equivalent to 180
