Well first u have to figure out the stuff in parentheses
Answer:
Step-by-step explanation:
hello :
-2x+5y=39
....(*)
2x-3y=-25....(**)
add(*) and (**) : 2y =64 so : y =64/2 = 32
put this value in (*) : -2x+5(32) = 39 ....continu
Answer:
42°
Step-by-step explanation:
3x + 54° = 180° [Supplementary angles]
=> 3x = 180 - 54
=> 3x = 126

=> <u>x = 42</u><u>°</u><u> </u><u>(Ans)</u>
Answer:
the answer is b
b works for each equation
Step-by-step explanation: