Question

Are 2(6.1x+25.3y+2.1x-3.9y) and 4(4.1x+ 10.7) equivalent

Answer 1

Answer:

Multiply the number outside the parentheses by each term inside the parentheses

=2(6.1x+25.3y+2.1x-3.9y)

=(2*6.1x)+(2*25.3y)+(2*2.1x)+(2*-3.9y)

=12.2x + 50.6y + 4.2x - 7.8y

combine like terms

= 16.4x + 42.8y

=4(4.1x+ 10.7)

=(4*4.1x) + (4*10.7y)

=16.4x + 42.8y

Yes, the two expressions are equivalent.

Step-by-step explanation: