20 Questions algibra 1 solving equations.

multi step equations

100

3x+8=20?

X=4

200

2(f-4)=16

f=12

300

2b+8=7b-2

b=2

400

2(r+3)=5r-12

6=r

500

8x − 2 = −9 + 7x

x= -7

Literal equations

100

u= k/a , for a

a= k/u

200

a-c=d-r , for a

a= c+d-r

300

g=x-c+y, for x

x= g+c-y

400

g=xc , for x

x= g/c 

500

g=c+x, for x

x= g-c

properties of equality

100

c − 3 = −2

c = 1      Addition Property of Equality

200

d — 5 = 7

d = 35       Multiplication Property of Equality

300

𝑥 + 4.5 = 10.8

𝒙 = 𝟔.3

400

𝑥 + 6 = 10

𝒙 =4

500

5 = 𝑥 + 8

−𝟑 =x

equation word problems

100

Twice a number is 500 more than six times the number. What is the number?

−125

200

What number increased by ¼ of itself is equal to 30?

24

300

Find a number such that ¼ of the number is 50 less than  2 /3 of the number.

120

400

When you started your homework assignment, your friend already had 6 exercises done. You can do about 3 exercises per minute, whereas your friend can only do 2 exercises per minute. How many minutes will it take you to catch up to your friend.

6 min

500

The denominator of a fraction exceeds the numerator of a fraction by 25. The value of the fraction is  3 /8 . Find the fraction.

15/40