HELP ME! I'm using my last points on this. Marcia has a total of 65 game pieces worth 89 points. Each game piece is worth one or two points. How many one-point game pieces does she have?

X= number of game pieces with one point
Y= number of game pieces with two points.

X+Y=65
1x+2y=89

Use first equation so solve for y to get y=65-x
Substitute for y in second equation to get 1x+2*(65-x)=89
Simplify to get 1x+130 - 2x=89
Subtract 130 from both sides of equation to get 1x-2x=89 - 130
Combine like terms to get -x=-41
Multiply both sides of equation by -1 to get x=41
If x=41, then y=24 because x+y=65, and 41+24=65

As for the points
41 * 1 = 41
24 * 2 = 48

41+ 48=89 so the point totals match up.

Your answer is:
She has 24 game pieces worth 2 points each.