Question

Help me with this please

Solution needed​

Answer 1

24x + 6

Explanation:

add the lengths of the 4 pieces together

4x + 3 - 12x + 7 + 42x - 9 - 10x + 5 ← collect like terms

= (4 - 12 + 42 - 10)x + (3 + 7 - 9 + 5)

= 24x + 6