An algebraic expression
4b - 2c is an expression, which is equal to 2(2b - c)
72/c where c= 4 is the same as 72/4 (which =18)
it should be minus 18* c
The expression can be written as (2 + c)/2 - 6b.
You have to switch the sign of all terms within the parentheses. For example, -(a - b + c - d) becomes -a + b - c + d
"An expression of three terms" means that the expression has three parts, combined by plus or minus signs. Within each of these parts (terms), there can be a single number or variable, or a product or division involving several other pieces.
No -25 °C is colder than -18 °C
a - b = c -(a - b) = -c b - a = -c
If the temperature is 18 C and it falls to 25 C, the temperature would then be -25 C (minus 25 Celsius). The freezing point on the Celsius scale is 0°. So minus 25 Celsius would be very, very extremely cold!
7C MINUS bracket open c plus 2 bracket close equals 7c minus c minus 2 equals 6c minus 2
The solid planets that are of rock low to high surface temperature Mercury - 275 °F (- 170°C) + 840 °F (- 450°C) Venus + 870 °F (+ 465°C) + 870 °F (+ 465°C) Earth - 129 °F (- 89°C) + 136 °F (+ 58°C) Moon - 280 °F (- 173°C) + 260 °F (+ 127°C) Mars - 195 °F (- 125°C) + 70 °F (+ 20°C) others:- Uranus (Ice planet minus 153 degrees Celsius) to minus (minus 218 C) Neptune (minus 210 C) to (minus 220 C) Saturn (minus 173 C) to minus (113 C). Pluto (minus 223 C). At its coolest, temperatures can fall to (minus 233 C).