8.7 x 10-4 =

a) 0.87 b) 0.00087 c) 8,700 d) 87,000

no, the equation would be invalid since they are both not equal.

step-by-step explanation:

here you got

4y-6+4y 2-9

first, you would simplify the equation on the form.

4y-6+4y 2-9

then, move all the terms that contains a y to the left and all the other terms to the right.

+4y-4y+-9-6

finally, you will simplify the left and the right side of the equation.

y=-3

step-by-step explanation:

what are the statements? and what do you mean by "216 2 1 6"?