What expression is equivalent to 4a +10

Hi there! :D

2(2a+5)

Step-by-step explanation:

Distributive property: a(b+c)=ab+ac

First, rewrite the problem down 10, and then 4.

10=5*2 or 2*5

4=2*2

2*2a+2*5

Finally you had to factor out by the common term of 2.

2(2a+5)

Hope this helps!

-Charlie

Thanks!

:D

:)

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -