Help me with 8 - 11 please

(question8 x=28),(question9 x=18),(question10 x=22),(question11 x=45)

Step-by-step explanation:

Question 8

2x+1+33=90

2x+34=90

2x=90-34

2x=56

Divide both sides by 2

x=56/2

x=28

Question 9

3x+11+25+90=180

3x+126=180

3x=180-126

3x=54

Divide both sides by 3

x=54 ➗ 3

x=18

Question 10

5x+12=6x-10

Collect like terms

6x-5x=12+10

x=22

Question 11

45+3x=180

3x=180-45

3x=135

Divide both sides by 3

x=135 ➗ 3

x=45

x = 25

step-by-step explanation:

a^2+b^2=c^2

7^2+24^2=c^2

49+576=625

sqrt625=25

x=25

hello :

70y^8 + 30y^6 = 2 ( 35 y^8 + 15y^6)

the lenght is : 35 y^8

the width is : 15y^6