Question 17: how to do it? Ask a math master to solve my problem. Thank you ~ I want the process. - Training Enrollment Network

Question 17: how to do it? Ask a math master to solve my problem. Thank you ~ I want the process.

1)

The sum of the two formulas, 2x=6m+4, is determined by x >: 0 gives m & gt-2/3.

Subtract the two formulas, 2y=-2m+ 10, which is determined by y >; 0: m

Comprehensive: -2/3

2) The original formula =3m+2-(5-m)=4m-3.

Related articles

Is there any good method of simple logical reasoning in the first volume of grade six?

Is Huanggang 360-degree math difficult?

A math problem in primary school ..

What is the total score of Guiyang senior high school entrance examination? 2023

Teaching plan of understanding width and narrowness in kindergarten mathematics

People's Education Press Xiaoshengchu Mathematics and Chinese Test Paper

Xizhi mathematics

What is the strict mathematical definition of real numbers?

Summary of mathematics teaching in the third grade of primary school: 4 articles

Mathematics in the third grade of primary school plays a connecting role in the whole primary school mathematics

Junior high school mathematics in Song Dynasty