Question

simplify the expressions and find the value if x is equal to 3
a. x+7+4(x-3)
b. 3(x+5)+5x-7

Answer 1

Step-by-step explanation:

a. x+7+4 (x-3)

3+7+4 (3-3) 3-3=0 4 (0)=0

10+0

10

b. 3(x+5)+5x-7

3(3+5)+5 (3)-7 3(8)=24 5 (3)=15

24+15-7

32

Answer 2

The correct answer is "10" and "32".

Step-by-step explanation:

$Given \ value \ is:\\\\x=3\\\\a...\\\\=x+7+4(x-3)\\=3+7+4(3-3)\\=10+14(0)\\=10\\\\b...\\\\=3(x+5)+5x-7\\=3(3+5)+5(3)-7\\=3(8)+15-7\\=24+15-7\\=32$

Learn more:

https://brainly.in/question/10076669

https://brainly.in/question/8769676