Answer:
You forgot to attach a image
Step-by-step explanation:
An integer is any whole number (i think)
Combine like terms, 1+6 is 7 and 2t+4t is 6t. so 6t+7=55. get the t by itself by subtracting 7 from both sides. 6t=48, divide by 6. t=8
Use the pic and solve the COS x-sin x/COS x+ sin x part
comment if there's something u don't understand
I’m pretty sure an equivalent expression would be 2x + 4y