7h - 2 = -51
7h = 2-51
7h = -49
h= -7
Answer:
option 2.
the others are simultaneous equations in two unknowns but 7x-2y have the same value and the value can't be two different things at once
Answer:
6x − 20y
Step-by-step explanation:
−2[−3(x − 2y) + 4y] =
= −2[−3x + 6y + 4y]
= −2[−3x + 10y]
= 6x − 20y
When dividing two fractions, we flip the second fraction and multiply by it (that is, use the reciprocal).
÷
= ×
You can either multiply top by top and bottom by bottom or you can simplify by dividing out common factors.
= ×
=