a. 15
b. 13
Step-by-step explanation:
a. 28-(28+20-35)
= 28-(48-35)
= 28-13
= 15
b. 28+70-35
=48-35
=13
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Verified answer
a. 15
b. 13
Step-by-step explanation:
a. 28-(28+20-35)
= 28-(48-35)
= 28-13
= 15
b. 28+70-35
=48-35
=13