Question

I need help answering this please

Answer 1

Part A

x = 4

Part B

10 - 2x = 7 + 5x (x = 4)

6 - 5x = 3 + 2x (x = 4)

7 - 3x = 4 + 6x (x = 6)

6x - 2x² = 3x + 5x² (x = 3x/7) I'm not sure what step is next though

hope this helps.