Answer:
[tex]29y - 29[/tex]
Step-by-step explanation:
1. Expand by distributing terms.
[tex]21y - 35 + 2(4y + 3)[/tex]
2. Expand by distributing terms.
[tex]21 - 35 + 8y + 6[/tex]
3. collect like terms.
[tex](21y + 8y) + ( - 35 + 6)[/tex]
4. Simplify.
[tex]29y - 29[/tex]
Therefor, the answer is 29y - 29
