8th grade math problems

We have discussed about 8th grade math problems in the previous blogs,in this grade we usually cover topics like Pre-Algebra, Algebra I, or Geometry.We can see one example of a 8th grade math problem given below,

Solve: 16(s – 4) – 26s - 21 = 9(s + 8)

Solution:

Given expression is,

16(s – 4) – 26s - 21 = 9(s + 8)

Multiplying the integer terms

16s - 64 – 26s - 21 = 9s + 72

Grouping the above terms

-10s - 85 = 9s + 72

Add 8 on both sides

-10s + 85 – 85 = 9s + 72 + 85

Grouping the above terms

-10s = 9s + 157

Subtract 9s by on both sides

-10s – 9s = 9s + 157 – 9s

Grouping the above terms

-19s = 157

Divide -4 on both sides

s = -157/19

Answer: s = -157/19.Usually we face many signs while solving problems like multiplication signs,divide symbol,

In the coming blogs we will learn about types of lines, hope you like the example of 8th grade math problems,please leave your comments if you have abny doubts.