Solving equations by inspection Year 7

Find the value of the pronumeral to make the equation true. 12 + a = 19
a= Find the value of the pronumeral to make the equation true. 31 = b + 20
b= Find the value of the pronumeral to make the equation true. 25 - c = 19
c= Find the value of the pronumeral to make the equation true. d - 9 = 11
d= Find the value of the pronumeral to make the equation true. 5e = 45
e= Find the value of the pronumeral to make the equation true. 6f = 54
f= Find the value of the pronumeral to make the equation true. 12g = 144
g= Find the value of the pronumeral to make the equation true.
h
h= Find the value of the pronumeral to make the equation true.
x
x= Find the value of the pronumeral to make the equation true.
3
y= "Nine is added to a number to give a result of twelve" 9x = 12 9 + x = 12 12 + x = 9 9 + 12 = x Which equation describes this sentence? "A number multiplied by seven is equal to seventy" 7 ÷ n = 70 70n = 7 7n = 70 7 + n = 70 Which equation describes this sentence? Answer TRUE or FALSE to the following statement. TRUE 2x + 3 = 11
x = 4 FALSE Answer TRUE or FALSE to the following statement. TRUE 3x - 1 = 14
x = 5 FALSE Answer TRUE or FALSE to the following statement. TRUE 4 (x + 3) = 32
x = 7 FALSE |

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