All Tasks

Equivalent equations 2

Select the equivalent equations −3 (2x − 1) = − 3 (x − 5)
 
# Linear equations

Training
7

Equivalent equations

Select the equation equivalent to 3(x – 6) – 8 = 7x – 8
 
# Linear equations

Training
7

Algebraic language and transformations of linear equations

Six times the preceding of a number plus its double is equal to the opposite of the number consecutive to that number.
 
# Unassigned

Training
7

Solving linear equations (variables in numerator and denominator)

Solve the linear equation $\frac{x+2}{2x+2}-\frac{1}{2}=\frac{x+4}{4x+4}$
 
# Unassigned

Training
7

The trip

Last Saturday John went for a trip. He traveled $\frac{3}{5}$ of the trip by train, $\frac{7}{8}$ of the remaining distance by car, and finally, he cycled the last 26 km. What was the total distance, in km, of the trip?
 
# Linear equations

Modeling
8

Find the terms of the function

Use the following function rule $f(x)=x^2$ to fill in the following blanks
 
# Quadratic functions

Reasoning
9