SOLUTION: what is 85+89+86+x=90

Question 822381: what is 85+89+86+x=90
Found 3 solutions by TimothyLamb, Alan3354, richwmiller:
Answer by TimothyLamb(4379)   (Show Source): You can put this solution on YOUR website!
---
85 + 89 + 86 + x = 90
260 + x = 90
x = 90 - 260
x = -170
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
what is 85+89+86+x=90
-----------
It's an equation.

Answer by richwmiller(17219)   (Show Source): You can put this solution on YOUR website!
It is probably a mistake
You probably want an average.
(85+89+86+x)/4=90
x=100
RELATED QUESTIONS
What is the mean of 84, 86, 85, 76,... (answered by greenestamps)
Joe scored 85, 89, 86, and 93 on the first 4 testsin math. what must he score to average... (answered by tommyt3rd)
the average is a 90 86*89*?? / 3 is 90 BUT... (answered by richwmiller)
You have a mean score of 84 after taking five 100-point tests. What do you need to score (answered by ewatrrr)
Latisha earned an 85% today. Her previous scores were 72%, 89%, 90%. What is her... (answered by colliefan)
What is the average of 86 and 89 (answered by Bettyy)
Consider the following test scores in a class of 34 students: 56, 60, 60, 61, 62, 63,... (answered by math_tutor2020)
Consider the following test scores in a class of 34 students: 56, 60, 60, 61, 62, 63,... (answered by math_tutor2020)
Consider the following test scores in a class of 34 students: 56, 60, 60, 61, 62, 63,... (answered by math_tutor2020)