Is the ordered pair (4,3) a solution to the equation below? y = 2x – 5 no yes
2 answers:
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70 = -7 (-2 - 2z)
First, divide both sides by -7. / Your problem should look like:
= -2 - 2z
Second, simplify to 
/ Your problem should look like: 
= -2 - 2z
Third, simplify
to get 10. / Your problem should look like: -10 = -2 - 2z
Fourth, add 2 to both sides. / Your problem should look like: -10 + 2 = -2z
Fifth, simplify -10 + 2 to get -8. / Your problem should look like: -8 = -2z
Sixth, divide both sides by -2. / Your problem should look like:
= z
Seventh, simplify to 
/ Your problem should look like: = z
Eighth, simplify to get 4. / Your problem should look like: 4 = z
Ninth, switch your problem around. / Your problem should look like: z = 4
Answer: z = 4
First, divide both sides by -7. / Your problem should look like:
Second, simplify
Third, simplify
Fourth, add 2 to both sides. / Your problem should look like: -10 + 2 = -2z
Fifth, simplify -10 + 2 to get -8. / Your problem should look like: -8 = -2z
Sixth, divide both sides by -2. / Your problem should look like:
Seventh, simplify
Eighth, simplify
Ninth, switch your problem around. / Your problem should look like: z = 4
Answer: z = 4