thinknoodlesmcowmnr4
thinknoodlesmcowmnr4 thinknoodlesmcowmnr4
  • 03-04-2020
  • Mathematics
contestada

The sum of -4 and 5 times a number is multiplied by 3. The result is 212 less than 7 times the number. What is the number?

Respuesta :

amna04352
amna04352 amna04352
  • 04-04-2020

Answer:

-25

Step-by-step explanation:

(-4 + 5n) × 3= 7n - 212

-12 + 15n = 7n - 212

8n = -200

n = -25

Answer Link
wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 04-04-2020

Answer:

The number is -25

Step-by-step explanation:

(-4 +5n)*3 = 7n-212

Distribute

-12 +15n = 7n -212

Subtract 7n from each side

-12 +15n-7n = 7n-7n -212

-12 +8n = -212

Add 12 to each side

-12+12 +8n = -212+12

8n = -200

Divide each side by 8

8n/8 = -200 /8

n =-25

Answer Link

Otras preguntas

What is the solution to this equation? 2x + 6 = 20 A. x = 13 B. x = 7 C. x = 52 D. x = 28 ANSWER: B (x = 7)
Use the Elimination method and solve 4x+6y=3 and -10x-15y=-4
5(−2) + (2−)2 when =3 and =−2
. Modern zoos are very different from zoos which ________ fifty years ago. A. were built B. was building C. to be built D. building
Please help me!! I’ll give brainliest also!!
 In what ways was 1763 turning point for the British colonial relationship
a community center is trying to raise $1680 to purchase exercise equipment. the center is hoping to receive equal contributions from members of the community. w
What is the solution to the equation -5x + 10 = -13x a) No solution b) x=0 c) x=1 d) x=-1.25
PLEASE ANSWERRR ill give brainlest
explain main significant of piaget's stage of development​