Answer:
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Step-by-step explanation:
Answer:
its c bru
Step-by-step explanation:
Answer:
Step-by-step explanation:
<u>Substitute</u><u> </u><u>x</u><u> </u><u>=</u><u> </u><u>-</u><u>1</u><u> </u><u>in</u><u> </u><u>the</u><u> </u><u>equation</u><u>.</u><u> </u>
Answer:
90
Step-by-step explanation:
Answer:
When subtracting expressions, we are applying the distributive property, where a multiple of an expression in brackets is applied to to each term.
e.g.
a(x + y) = ax + ay
In the case of subtracting an expression, we're doing the same thing, but in the example above, "a" would be equal to -1.
(a + b) - (c + d) ≡ (a + b) + -1(c + d)
And so the negative one is distributed across the terms within the brackets.