It equals 90
270
90+b=2x70 90+b=140 90-90+b=140-90 b=50
If you mean: 15a = 6a - 90 then the variable a works out as -10. If you mean 15a + 6a - 90, then it equals 21a - 90.
To find what number multiplied by 7 equals 630, you would divide 630 by 7. This calculation gives you 90, as 7 multiplied by 90 equals 630. Therefore, the answer is 90.
90 + 90 + 60 = 240
90
20 x 90 = 180020 times 90 equals 18 times 100 equals 1800.
81
90 x 90 = 8,100
90 degrees Fahrenheit equals (90 - 32) / 1.8 = 32 degrees Celsius.
The equal sign is the same as the enter button