Solving Linear Equations

Josefina Zarazua 8th Grade

Mathematics

Solve: 4x+13=21

a) X=2

b) X=4

c) X=3

d) None of these

Is 2 a solution for 2y+3y=12-y ?

a) Yes

b) No

Solve for x the given equation:

8x-2(4-x)=14

a) X=3.66

b) X=2.2

c) X=1

d) X=2.34

Solve by clearing fractions

¾ x + ½=2/3 A) X= 1/8

B) X= 2/9

C) X= 14/9

D) X= 7/8

3/4X+1/2=2/3

1/2X=4

Equivalent equations are equations that have exactly the same

solution(s). Are 2(x-3)-5=4(x-5) and -2x=-9

equivalent equations?

A) Yes

B) No

C)Cannot be determined

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=?

Is the following aproach correct or incorrect?

-3y+20=2 -20 -20 -3y =-18 3 3 y=-6

A)Correct

B)Incorrect

Sandra has $54 in her account. She is saving $5.6 per week. How long will it take

her to save $390?

a) 62 weeks

b) 75 weeks

c) 79 weeks

d) 60 weeks

A number decreased by 5 is equal to 13. Find the number.

a) 20b)12c) 18d)16

The End