3x-5y=4------eq1
4x+3y=15-------------eq2
multiply 3 to first eq and 5 to second eq.
9x-15y=12
20x+15y=75
subtract both eqs
29x=87 x=3 so put x in eq 1
3(3)-5y=4
5y=5
y=1
C.both x and y because of the variables will be eliminated
Answer:
Step-by-step explanation:
Answer:
idk
Step-by-step explanation:
Answer:
x=50 degrees
Step-by-step explanation:
180+x-90=3x-10
simplify
180+x-x-90+10=3x-x-10+10
2x=100
x=50