azzammohamed784 azzammohamed784
  • 06-12-2020
  • Mathematics
contestada

2z - 31 = -9z + 24

can anyone tell me how to know if we must subtract or add? like we must write it as this when we solve it 2z - (- 9z) or 2z + -9z

Respuesta :

erinsupersonic03 erinsupersonic03
  • 06-12-2020
you would combine like terms so the answer would be -7z-7
Answer Link
briannahart04
briannahart04 briannahart04
  • 06-12-2020
you move one of the equations to the other side and then combine like terms

Answer Link

Otras preguntas

In ________,the student can predict what comes next at the level of words, phrases etc.
Yvonne always buys lemons and apples in the ratio 3:7. If she buys 30 pieces of fruit in total, how many lemons did she buy?
Describe two positives/ or good things about Athenian government:
Describe the features of sharks from the Cenozoic era.
Which one is it???i can’t figure it out
Which of the following is an example of deductive reasoning?
Ama goes to school....... train
Double a number and subtract nine. algebraic expression
NO LINKS OR ELSE YOU'LL BE REPORTED!What were personal areas in which you grew in 8th grade and what personal areas do you think you should have improved in?Thi
Frankin Corporation's net cash provided by operating activities was $110; its capital expenditures were $65; and its cash dividends were $24. The company's free