2x + 3 = x - 4 2x + 7 = x x + 7 = 0 x = -7 2(-7) + 3 = -11 (-7) - 4 + -11
-7 minus -4 is -3
A minus and a minus makes a plus A plus and a plus makes a plus A minus and a plus or plus and a minus makes a minus 7 - -2 is a minus and a minus Therefore the answer is 7 + 2 = 9
1
well... order of operations... says 7 + (2x3) - (5x2) which is 7 + 6 - 10 simplified as 13 - 10
7 times minus 2 =
..11.
1
sixteen minus fourteen times two times four divided by four plus seven 16 - 14 × 2 × 4 ÷ 4 + 7 = (16 - ((14 × 2 )× (4 ÷ 4))) + 7 = (16 - (28 × 1)) + 7 = (16 - 28) + 7 = -12 + 7 = -5.
(7+7-2*2)/2=5 The solution is positive 5.
-28
500/5 = 100 + 2 - 7 = 95 x 4 = 380
2 x 2 = 4 4 / 4 = 1 1 + 6 = 7 7 - (10 x 2) 7 - 20 = -13
1*-7 +7-4=-4
3 * 6 - 2 * 7 = (3 * 6) - (2 * 7) = 18 - 14 = 4
plus times plus = plus minus times plus = minus plus times minus = minus minus times minus = plus so when you subtract a number it is the same as adding its negative; for example 7 - 4 = 3 7 + (1)(-4) = 3
(7 x 10) - 4 = 66