210 likes | 834 Vues
Solving Linear Equations. Josefina Zarazua 8 th Grade Mathematics . Solve: 4x+13=21. X=2 X=4 X=3 None of these. Is 2 a solution for 2y+3y=12-y ?. Yes No. Solve for x the given equation: 8x-2(4-x)=14. X=3.66 X=2.2 X=1 X=2.34. Solve by clearing fractions ¾ x + ½ =2/3 .
E N D
Solving Linear Equations Josefina Zarazua 8th Grade Mathematics
Solve: 4x+13=21 • X=2 • X=4 • X=3 • None of these
Is 2 a solution for 2y+3y=12-y ? • Yes • No
Solve for x the given equation:8x-2(4-x)=14 X=3.66 X=2.2 X=1 X=2.34
Solve by clearing fractions¾ x + ½=2/3 X= 1/8 X= 2/9 X= 14/9 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? Yes No Cannot be determined ?≠? ?=?
Is the following aproach correct or incorrect? Correct Incorrect -3y+20=2 -20 -20 -3y =-18 3 3 y=-6
Sandra has $54 in her account. She is saving $5.6 per week. How long will it take her to save $390? 62 weeks 75 weeks 79 weeks 60 weeks
A number decreased by 5 is equal to 13. Find the number. 20 12 18 16
Good Job! The End