If you are solving for the question in the picture your answer would be 18. Whiich is letter A.
12x+15y=390 Original Equation
12(10)+15y=390 Replace x with 10
120 + 15y= 390 Mutiply 12 by 10
-120 = -120 subtract 120 on both sides to simplfy the equation
15y= 270 New equation
÷15 = ÷15 To get the variable alone divide 15 on both sides
y=18 Your value for y.
Answer:
X*2+3x-2
2x+3x-2
5x-2 is your answer. Therefore 3 tearms in expression
Please mark me as brainliest. thanks!!
I’m not sure what you have to find but if your trying to find what x and y equal y = 45 and x = 135
