What is the answer to 2.1y-2.3=-0.41 ?

The answer to 2.1y-2.3=-0.41 is y= 9/10

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2.1y-2.3=-0.41

2.1 y - 2.3 = - 0.41

y = \frac{9}{10}

Decimal Notation

y = 0.9

Solution steps

2.1 y - 2.3 = - 0.41

Multiply both sides by

100

210 y - 230 = - 41

Move

230

to the right side

210 y = 189

Divide both sides by

210

y = \frac{9}{10}

x = x - 1

x, - 2 x + y = - 3

x, - x + y = - 1

- \frac{a}{0.5} + 3.9 = - 1.3

a, a^{2} - b^{2} = (a + b) (a - b)