to transform the equation you are allowed to add, to subtract, to multiply and to divideboth sides of the equation(by) the same term:

........ Expand the brackets:

........ Collect like terms: x at the LHS, the constants at the RHS:

........ Divide by the leading coefficient of x:

........ Solution. To control your work plug in this value into the original equation and check if you get a true statement.

The questions 3. and 4. have to be done in exactly the same way.

1. You are looking for 2 numbers:2. One number is 7 less than another. If four times the smaller number plus 2 times the larger number is 62, find the two numbers.

...

first number: x

second number: x-7

2. Translate the sentence intoan equation:

Use the transformations I've used above: ........ Expand the brackets:

........ Collect like terms: x at the LHS, the constants at the RHS:

........ Divide by the leading coefficient of x:

........ Solution. To control your work plug in this value into the original equation and check if you get a true statement.