Simplify by Combining Like Terms $7 a + 6 - 4 b + 7 b - 2 + a$

question 14

Short Answer

Simplify by combining like terms:
$7 a + 6 - 4 b + 7 b - 2 + a$

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Definitions:

Temperature-Pressure History

The record of variations in temperature and pressure that a geological body has experienced over time, crucial for understanding metamorphic processes and the conditions of mineral formation.

Shortened

The term shortened in a geological sense refers to a reduction in the horizontal extent of the Earth's crust, often resulting from tectonic processes such as mountain building (orogeny).

Vertical Direction

An orientation that is perpendicular to the horizon, pointing up or down from the observer's perspective.

Horizontal Direction

Pertains to anything oriented or moving left to right or parallel to the horizon, opposite of vertical.