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

$\frac{27z}{10} +\frac{2.6z}{10} +\frac{10(-6.5)}{10} =0.7$

Combine fractions with common denominator

$\frac{27z+2*6z+10(-6.5)}{10} =0.7$

Multiply the numbers

$\frac{27z+12z-65}{10} =0.7$

Combine like terms

$\frac{39z-65}{10} =0.7$

Multiply all terms by the same value to eliminate fraction denominators

$10*\frac{39z-65}{10} =10*0.7$

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

$\frac{39z}{39} =\frac{72}{39}$

Simplify

Z= 1.846153846

Answer 2

Answer:

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

Step-by-step explanation:

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