floresalexandria floresalexandria
  • 12-12-2019
  • Mathematics
contestada

how to solve 21=3x+3y

Respuesta :

opheliachampon
opheliachampon opheliachampon
  • 12-12-2019

Answer:

x+y=7

Step-by-step explanation:

ok so first you have to divide 21 by three and then both threes by three so its just  x+y and then 21/3 is 7 so the answer is x+y=7

Answer Link

Otras preguntas

Which career may be a good fit for you if you enjoy planning meals and learning about proper nutrition? fitness instructor physical therapist medical researcher
(x+x+2)÷4=189.5 solve for x
Which phrase correctly completes the second sentence? Ya tengo el regalo perfecto para mi hermana. ______________ en el mercado de artesanías. La compré
for what value of x is <1 complementary to <2, if m <1=5x+4 and m <2=7x+2. a. 3 b.7 c.1 d.14.5
The Knight of Dishonor wants to attack the castle and decides that he should make a long ladder that will reach across the moat to the top of the castle. How lo
Something that is strange or odd from a conventional viewpoint is often referred to as: a. queer c. lunette b. keen d. wall-eyed
Bernard de Gálvez led troops to victory in Florida at in 1781.
Price: ? Discount: 5% Sale Price: $57
6 groups of 1/3 what are the groups
What instrument is normally used to measure atmospheric pressure? (1 point) thermometer barometer vacuum manometer