Question

Mathematics activity

*Add 6x+5y+7x+8y

*Subtract 5p+7q+6r-(4p+7q+3r)

*Find the value of P

5p+20=10​

Answer 1

Answer:

ADD*13x+12y

SUBTRACT*p+9r

FIND*-2

Step-by-step explanation:

ADD*6x+5y+7x+8y

bring like terms together

=6x+7x+5y+8y

=13x+12y

SUBTRACT*5p+7q+6r-(4p+7q+3r)

bring like terms together and open brackets and if - is outside the bracket the signs inside bracket change

=5p+7q+6r-4p-7q+3r

=5p-4p+7q-7q+6r+3r

=p+0+9r

=p+9r

FIND*5p+20=10

=>5p=10-20

=>5p=-10

=>p=-10/5

=>p=-2

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