Math, asked by levivy, 4 months ago

Pls help I dont want the answer I want the explanation to this question if I understand the explanation then I will surely mark u the brainlies
The question is below
3(5z-7)-2(9z-11)=4-(8z-13)-17
Pls i realy need the answer fast day after tmrw is my exam pls

Answers

Answered by rizwanahmedpathan
1

Answer:

Then verify your answer by substituting the value of z

Attachments:
Answered by DüllStâr
60

Answer:

z=-0.2

Step by step explanation

Step 1:

⇒3(5z-7)-2(9z-11)=4-(8z-13)-17

Step 2:

⇒15z-21-18z+22=4-8z+13-17

Step 3:

⇒15z-18z+8z=4+21-17-22+13

Step 4:

⇒5z=-1

Step 5:

⇒z=-1/5

Step 6:

⇒z=-0.2✓

Verification:

Step 1:

</strong><strong>⇒3(5z-7)-2(9z-11)=4-(8z-13)-17</strong><strong>

Step 2:

</strong><strong>⇒3(5(−0.2)−7)−2(9(−0.2)−11)=4-(8(-0.2)-13)-17</strong><strong>

Step 3:

</strong><strong>⇒3(-8)-2(−12.8)=4+14.6-17</strong><strong>

Step 4:

</strong><strong>⇒-24+25.6=18.6-17</strong><strong>

Step 5:

</strong><strong>⇒1.6=1.6</strong><strong>

</strong><strong>†</strong><strong>Hence </strong><strong>\</strong><strong>:</strong><strong>Vertified</strong><strong>†</strong><strong>

______________________________

with regards!

Dull Star★

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