Answer:

Step-by-step explanation:

<u>Expand the terms in the bracket</u>
That's

<u>Add 3y to both sides of the equation</u>

Subtract 7 from both sides by the equation

<u>Divide both sides by - 4</u>

We have the final answer as

Hope this helps you
Answer: 3t+4q.
Step-by-step explanation: Triangles have 3 sides, so there will be 3 sides for each triangle in the envelope. This is represented by 3t. Quadrilaterals have 4 sides, so there will be 4 sides for each quadrilateral in the envelope. This is represented by 4q. The total number of sides will be the number of triangle sides and the number of quadrilateral sides together.
Answer:
Longitudinal
Step-by-step explanation:
A longitudinal survey consists of a research that implies several repeated observations of the same variables over certain prefined periods of time, in this case the psychologist is repeating in different times (kindergarten, first grade) and measures the same variables over this period of time (reading habits)
Try, pls, the offered decision.
Answer is: 4x-y-z=26.
If it is possible, check arithmetic.
Answer:
Step-by-step explanation:
3x² + 7x + 3 + (5x² + 12x) = 3x² + 7x + 3 + 5x² + 12x
= 8x² + 19x + 3