Metodo de sustitucion e igualacion

3x+2y=12

4x-2y=2

What's 1*1:3+8:3*6+9:100*450+489 equal to?

X * (-3+5), Write an equivalent expression

The door on the computer center has a lock which has five buttons numbered from 1 to 5. The combination of numbers that opens the lock is a sequence of five numbers and is reset every week.

Is it possible for a 5 digit number to be rounded up to a 6 digit number

What's negative 4 over 6 as an equivalent fraction.

A baker lives 11 blocks away from the store. the baker walks to the store and back, taking a two-block detour each way. how many blocks did the baker walk in total?

How can transformations be used to solve real world problems?

Chris needs to find the product of two numbers. One of the numbers is 6. The answer also needs to be 6. How will he solve this problem? Explain

I have 8 M&Ms. There are 2 green ones in the pack. What is the proportion of green M&Ms in the pack?

Jessica is baking a cake. The recipe says that she has to mix 96 grams of sugar into the flour. Jessica knows that 1 cup of this particular sugar has a mass of 128 grams. She added one over two of a cup of sugar to the flour.