Unit 7 Lesson 9 Check for Understanding

If 5x = 2x + 27,

then x=

If 5 + 3x + x = x + x + x + 9,

then x=

If 7x - 4x + 2x + 5 = 2x + 14,

then x=

If 3(2x + 1) = 13 + x,

then x=

Evaluate if x=4:

3x+4∗+5

If 2∗ + 3∗ + 1 = ∗ + 11 + 3∗ - ∗, then x=​​ (a)   ∗=​ (b)  

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If 2(2x) + 10 = 3x + 13,

then x=

Evaluate if ∗=(-3):

2∗+x+2x+5

If 2(2∗ + 1) + ∗ = ∗ + 2∗ +18, then x=​​ (a)   ∗=​ (b)  

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If 2x + ∗ + 2x = 10 + x, then x=​​ (a)   ∗=​​ (b)  

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