Thea expression in simplest form is 10.7a + (−6) . Option D
Algebraic expressions are expressions that comprise of variables, terms, coefficients and constants.
They are also made up of certain mathematical operations.
Given the expression;
(3 + 16.4a) − (9 + 5.7a)
expand the bracket
3 + 16. 4a - 9 - 5. 7a
collect like terms
16. 4a - 5. 7a - 9 + 3
add or subtract like terms
10. 7a - 6
Thus, the expression in simplest form is 10.7a + (−6) . Option D
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Answer:
I'm not sure if you meant that when you said "divided by 4"
7 + 2x ≥ -5 - x
<u> + x </u> <u> + x</u>
7 + 3x ≥ -5
<u>-7 </u> <u>-7 </u>
3x ≥ -12
3x/3 ≥ -12/3
x ≥ -4
It's a linear function. We need only two points to the plotting of the graph.