Answer:
both are wrong
Step-by-step explanation:
raj's mistake: he did not multiply -2 by -5a/4
antonia's mistake: she went from -4a/4 to a which is wrong because -4/4 is -1.
Answer:
143
Step-by-step explanation:
To answer only when the angle is needed to be found where the variable is is when you can add the two angles inside because it is the same as 180-77-66=37 and then finding what 37+__ to make 180 which is 143
The first one is : x=<span><span><span>3/2</span>y</span>+<span>21/<span>2
the second one is: </span></span></span>x=<span><span><span>1/3</span>y</span>+<span><span>−7/</span><span>6</span></span></span>