Question

2.7z + 1.2z - 6.5 = 0.7

Answer 1

Answer/Step-by-step explanation:

Combine multiplied terms into a single fraction

2.7z+1.2z−6.5=0.7

2 7 / 1 0 + 1 . 2 − 6 . 5 = 0 . 7

Combine multiplied terms into a single fraction

2 7 / 1 0 + 1 . 2 − 6 . 5 = 0 . 7

2 7 /1 0 + 6 5 − 6 . 5= 0 . 7

Find common denominator

2 7 /1 0 + 6 5 − 6 . 5= 0 . 7

`(27z)/(10) +(2.6z)/(10) +(10(-6.5))/(10) =0.7`

Combine fractions with common denominator

`(27z+2*6z+10(-6.5))/(10) =0.7`

Multiply the numbers

`(27z+12z-65)/(10) =0.7`

Combine like terms

`(39z-65)/(10) =0.7`

Multiply all terms by the same value to eliminate fraction denominators

`10*(39z-65)/(10) =10*0.7`

Cancel multiplied terms that are in the denominator

39z-65=10*0.7

Multiply the numbers

39z-65=7

Add 65 to both sides of the equation

39z-65+65=7+65

Simplify

39z=72

Divide both sides of the equation by the same term

`(39z)/(39) =(72)/(39)`

Simplify

Z= 1.846153846

Answer 2

= 1 . 8 4 6 1 5 3 8 4 6

Explanation:

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