dayseez
Answered

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2.5x - 6.4 + 1.2x = 21.35
please show step by step!!​

Sagot :

38571218

Answer:

x as a fraction 7[tex]\frac{1}{2}[/tex]

x as a decimal: 7.5

Step-by-step explanation:

2.5x - 6.4 + 1.2x = 21.35

Combine 2.5x and 1.2x to get 3.7x.

3.7x - 6.4 = 21.35

Add 6.4 to both sides.

3.7x = 21.35 + 6.4

Add 21.35 and 6.4 to get 27.75.

3.7x = 27.75

Divide both sides by 3.7.

x = [tex]\frac{27.75}{3.7}[/tex]

Expand [tex]\frac{27.75}{3.7}[/tex] by multiplying both numerator and the denominator by 100.

x = [tex]\frac{2775}{370}[/tex]

Reduce the fraction  [tex]\frac{2775}{370}[/tex] to lowest terms by extracting and canceling out 185.

x = [tex]\frac{15}{2}[/tex]

simplify

7[tex]\frac{1}{2}[/tex]

Hope it helps and have a great day! =D

~sunshine~

Snor1ax

Answer: x=7.5

Step-by-step explanation:

2.5x - 6.4 + 1.2x = 21.35

3.7x-6.4=21.35

3.7x=21.35+6.4

3.7x=27.75

3.7x/3.7=27.75/3.7

x=7.5

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