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Y_Kistochka [10]
3 years ago
7

Solve the equation. Justify each step

Mathematics
2 answers:
MrMuchimi3 years ago
4 0

Answer:

h=-6.5

Step-by-step explanation:

1. Write down the equation

>> 9(h-4) = 5(3h-2)

2.expand brackets on both sides

>> 9h-36 =15h-10

(9xh=9h, 9x-4=-36 >> 9h+-36 =9h-36. Same method for the other side)

3. Cancel wherever you can

>> -36 = 4h-10 ( Delete 9h on both sides)

>> -26= 4h ( Add -10 on both sides)

4. Calculate h

>> 4 fits 4.5 times inside 26 (4x4.5=26)

>> since there is a negative, don't forget to add that

>> so h = -4.5

Good luck and I hope you found this helpful. I am happy to help you if you have any other questions!!

Wewaii [24]3 years ago
3 0

Given

9(h-4) = 5(3h-2)

Distribute 9 on the left hand side and 5 on the right hand side (distributive property of addition)

9h-36=15h-10

Add 36 to both sides (addition property of equality)

9h=15h+26

Subtract 15h to both sides (subtraction property of equality)

-6h=26

Divide both sides by -6 (division property of equality)

h=-\dfrac{26}{6}=-\dfrac{13}{3}

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