Two sisters each bought 1 litter box, 10 cat toys an x bags of cat food. Write and simplify

an algebraic expression that represents this purchase.

2a + 20b +2xc = 2(a+10b+xc)

Step-by-step explanation:

Let a = one litter box, b = one cat toy and c = a bag of cat food

The 1 litter box = a,    10 cat toys = 10b and x bags of cat food = xc

For one sister, purchase = a + 10b + xc

And for two sisters,

total purchase = 2 x ( a + 10b + xc ) = 2(a+10b+xc)

                         = 2a + 20b + 2xc

b. x + 1

step-by-step explanation:

i'am smart

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.